Wednesday 05 April 2023
Time
Presentation title
07:45 - 08:30
Yoga class
Location: Genderfoyer
09:00 - 10:15
Particle physics
- 11.1
Location: Baroniezaal
- Other - NWO Domains, please specify
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Session details
09:00 - 09:15
How charming is the Higgs boson? - Probing the Higgs-boson coupling to charm quarks
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1
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Presentation category:
Materials Physics
09:15 - 09:30
SMEFT interpretation of combined Higgs boson measurements with the ATLAS experiment
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Statistically optimal observables for global SMEFT fits
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Search for new physics in rare beauty-baryon decays
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4
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Presentation category:
Materials Physics
10:00 - 10:15
Lepton Flavour Universality To The Test
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5
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Presentation category:
Materials Physics
09:00 - 10:15
Atomic, molecular & optical physics
- 12.1
Location: Auditorium
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Session details
09:00 - 09:15
First observation of a sub-Doppler quadrupole line in molecular hydrogen
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1
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Presentation category:
Materials Physics
09:15 - 09:30
Fully isomer-resolved spectroscopy and ultrafast dynamics
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Using classical trajectories to study ultracold collision complexes
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3
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Presentation category:
Materials Physics
09:45 - 10:00
High-throughput time-resolved photofragmentation dynamics studies of biomolecules
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4
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Presentation category:
Materials Physics
10:00 - 10:15
Cavity-based Ultrafast Electron Microscopy at TU/e: First Results
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5
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Presentation category:
Materials Physics
09:00 - 10:15
Materials physics
- 13.1
Location: Brabantzaal
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Session details
09:00 - 09:15
Field Screening by Mobile Ions in Perovskite Solar Cells
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1
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Presentation category:
Materials Physics
09:15 - 09:30
Investigation of the Optical Properties of Chiral Halide Perovskites from First Principles
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Diversity of excitons in 2D perovskites: a first-principles showcase study
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Playing with Ag-Fe layered 2D perovskites: the role of the constitutive components
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4
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Presentation category:
Materials Physics
09:00 - 10:15
Materials physics
- 14.1
Location: Boszaal
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Session details
09:00 - 09:15
Atomic structure and properties of epitaxial VO2 thin films on various substrates
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1
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Presentation category:
Materials Physics
09:15 - 09:30
Multi-level operation in vanadium dioxide-based resistive switching devices
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Study of the Mott-Insulator to Metal Transition in VO2 Using Ultrafast XAS
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Probing phase transition in strongly correlated systems by high-harmonic spectroscopy
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4
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Presentation category:
Materials Physics
10:00 - 10:15
The Fermi surface of the ferromagnetic superconductor UCoGe under external magnetic fields
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5
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Presentation category:
Materials Physics
09:00 - 10:15
Nanoscale physics
- 15.1
Location: Zaal 63-64
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Session details
09:00 - 09:15
The privilege of being slow and noisy
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1
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Presentation category:
Materials Physics
09:15 - 09:30
Approaching Bulk Mobility in PbSe Colloidal Quantum Dots 3D Superlattices
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Stratified nanophotonic architecture for bright phosphor-based nano LEDs
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Nanoscale thermometry of plasmonic structures via Raman shifts in copper phthalocyanine
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4
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Presentation category:
Materials Physics
10:00 - 10:15
Ferritin-based single-electron bio-nano devices
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5
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Presentation category:
Materials Physics
09:00 - 10:15
Physics of fluids
- 16.1
Location: Zaal 80-81
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Session details
09:15 - 09:30
The influence of charge regulation on electro-driven ion and fluid transport in porous media
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Onset of convective dissolution in a vertical cylindrical cell
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Metastable states of liquids in paper; Mechanical characterization of co-solvent distributions
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4
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Presentation category:
Materials Physics
10:00 - 10:15
Ultrafast contrast-enhanced ultrasound imaging using cascaded waves
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5
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Presentation category:
Materials Physics
09:00 - 10:15
Physics for technology
- 17.1
Location: Zaal 65
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Session details
09:00 - 09:15
A cryogenic, coincident fluorescence, electron and ion beam microscope
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1
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Presentation category:
Materials Physics
09:15 - 09:30
Smart*Light: A high-brilliance, table-top X-ray source for materials characterization
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Topological information device operating at the Landauer limit
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Laser-induced morphological changes in nanometer thick films in the pre-ablation regime
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4
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Presentation category:
Materials Physics
10:00 - 10:15
Unidirectional Luminescent Solar Concentrators
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5
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Presentation category:
Materials Physics
09:00 - 10:15
Statistical physics & soft condensed matter
- 18.1
Location: Zaal 82-83
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Session details
09:00 - 09:15
Geometrical control of colloidal liquid crystal alignment and dynamics
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1
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Presentation category:
Materials Physics
09:15 - 09:30
T1 transitions as active hexatic defect annihilations
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Speeding up the assembly of virus-like particles using packaging signals
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Kinetic phase diagram for nucleation and growth of competing crystal polymorphs in charged colloids
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4
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Presentation category:
Materials Physics
09:00 - 10:15
Materials physics & Nanoscale physics
- 19.1
Location: Parkzaal
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Session details
09:00 - 09:15
Quantum spin Hall states and topological phase transition in germanene
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1
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Presentation category:
Materials Physics
09:15 - 09:30
Tuning electronic properties of graphene with a transferred ultrathin Ga2O3 encapsulation
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Nano-ARPES investigation of twisted bilayer WS2
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Novel approach to synthesize Al doped NiO films with atomic level control on the Al incorporation
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4
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Presentation category:
Materials Physics
10:00 - 10:15
Anisotropic proximity-induced superconductivity and edge supercurrent in Kagome metal, K1-xV3Sb5
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5
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Presentation category:
Materials Physics
09:00 - 10:15
Quantum physics
- 20.1
Location: Zaal 55-58
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Session details
09:00 - 09:15
Quantum simulation of exciton transport in a Germanium 4x2 quantum dot array
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1
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Presentation category:
Materials Physics
09:15 - 09:30
Parametric Pumping of Kerr Nonlinear Oscillators
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2
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Presentation category:
Materials Physics
09:30 - 09:45
Controlled crossed Andreev reflection and elastic co-tunneling mediated by Andreev bound states
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3
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Presentation category:
Materials Physics
09:45 - 10:00
Quantum control of magnonic cat states on a chip by a superconducting qubit
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4
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Presentation category:
Materials Physics
10:00 - 10:15
Tin-Vacancy centres in diamond nanophotonic waveguides as efficient quantum network nodes
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5
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Presentation category:
Materials Physics
10:15 - 10:35
Break
Location: Kempenzaal / hall ways
10:35 - 11:50
Particle physics & Materials physics
- 11.2
Location: Baroniezaal
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Session details
10:35 - 10:50
The key to understanding matter and anti-matter
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1
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Presentation category:
Materials Physics
10:50 - 11:05
Cosmic neutrino detection: Limitations from Heisenberg’s uncertainty principle
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Fractional derivatives in quantum dissipative systems: From time glasses to magnetization dynamics
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3
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Presentation category:
Materials Physics
11:20 - 11:35
Machine Learning of Implicit Combinatorial Rules in Mechanical Metamaterials
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Static depth characterization of thin films using Low-Energy Ion Scattering
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5
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Presentation category:
Materials Physics
10:35 - 11:50
Atomic, molecular & optical physics
- 12.2
Location: Auditorium
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Session details
10:35 - 10:50
Symmetry and randomness in scattering media
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1
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Presentation category:
Materials Physics
10:50 - 11:05
Tuning resonances in cold ND3-H2 collisions with external electric fields
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Attosecond XUV interferometry as a tool for extracting the dipole phase in high-harmonic generation
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3
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Presentation category:
Materials Physics
11:20 - 11:35
Sensing sound with light: towards quantum dot-quantum acoustics
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Multichannel effects in ultracold three-body physics
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5
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Presentation category:
Materials Physics
10:35 - 11:50
Materials physics
- 13.2
Location: Brabantzaal
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Session details
10:35 - 10:50
Cooperative quenching mechanisms of biexcitons in the off state
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1
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Presentation category:
Materials Physics
10:50 - 11:05
Understanding the Second Order Nonradiative Recombination Process in Hybrid Metal Halide Perovskites
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Transient absorption spectroscopy of charge transfer in MoS2 CsPbBr3 heterostructures
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3
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Presentation category:
Materials Physics
11:20 - 11:35
Ultrafast Carrier Dynamics in LaFeO3 and LaNiO3 Thin Films
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Interfacial charge transfer in multilayered perovskites and applications in electrocatalyst design
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5
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Presentation category:
Materials Physics
10:35 - 11:50
Materials physics
- 14.2
Location: Boszaal
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Session details
10:35 - 10:50
Relaxor ferroelectric PMN-PT thin films for low hysteretic microelectronic devices
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1
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Presentation category:
Materials Physics
10:50 - 11:05
BaTiO3 ferroelectric transistors as mixed-volatility memristive elements
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Strain control of magnetoelectric order in multiferroic SrMnO3 thin films
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3
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Presentation category:
Materials Physics
11:20 - 11:35
High Figure of Merit p-Type Copper(I) Iodide Thin films with Sulphur Incorporation
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Oxidation induced amorphicity and delayed crystallization in binary transition metal alloys
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5
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Presentation category:
Materials Physics
10:35 - 11:50
Nanoscale physics
- 15.2
Location: Zaal 63-64
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Session details
10:35 - 10:50
Lifetime enhancement of an atomic spin chain near a diabolic point
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1
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Presentation category:
Materials Physics
10:50 - 11:05
Aharonov-Bohm magnetism in open Fermi surfaces
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Phase transitions of wave packet dynamics in disordered non-Hermitian systems
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3
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Presentation category:
Materials Physics
11:20 - 11:35
One step further with spin shuttling
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Cooper pair splitting in a two-dimensional electron gas
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5
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Presentation category:
Materials Physics
10:35 - 11:50
Physics of fluids + DPC prize winners
- 16.2
Location: Zaal 80-81
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Session details
10:35 - 10:50
Engineering of branched fluidic networks that minimize energy dissipation
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1
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Presentation category:
Materials Physics
10:50 - 11:05
Contact line motion of viscoelastic fluids
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Elastometry of Complex Fluid Pendant Capsules
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3
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Presentation category:
Materials Physics
Presentation summary
Oil/water interfaces are some of the most ubiquitous in nature. Opposing polarities at these interfaces attract myriad surface-active molecules, which can seed complex viscoelastic or even solid interfacial structure. Bio-relevant proteins such as hydrophobin, polymers such as PNIPAM, and complex crude oil asphaltenes are examples of systems where such layers can occur. When a pendant drop of crude oil is aged in aqueous salt solution (brine), it can form an interfacial elastic membrane of asphaltenes so stiff that it crumples like paper upon retraction. This solid interfacial layer dominates emulsion stability, droplet coalescence, and capillary pressures within porous media. Most of the work studying crude oil/brine interfaces focuses on the viscoelastic liquid regime, leaving a wide range of fully solidified, elastic interfaces largely unexplored. In this work, we quantitatively measure elasticity not only in the viscoelastic liquid regime, but also in the truly elastic solid regime. This is done by aging pendant drops of oil in brine, retracting them until they crumple, and fitting the crumpled shapes using elastic membrane theory. We can use this technique to develop a deeper understanding not only of crude oil interfaces, but of any fluid system with solid interfacial layers.
Co-authors:
Felix Kratz | Technische Universität Dortmund | PhD Student, Näthalie Schilderink | University of Twente | Technician, Subhash Ayirala | Saudi Aramco | Researcher, Mohammed Alotaibi | Saudi Aramco | Researcher, Michael Duits | University of Twente | Associate Professor, Jan Kierfeld | Technische Universität Dortmund | Professor, Frieder Mugele | University of Twente | Professor
11:20 - 11:35
Scaling spin qubits in quantum dots | More – Distant - Industrial
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4
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Presentation category:
Materials Physics
Presentation summary
Practical quantum computation requires the fabrication of millions of high-yielding, uniform qubits. Spin qubits in electrically-defined silicon quantum dots are promising qubit candidates due to their small footprint and relatively long coherence time. The last decade meant a leap for the understanding and control of spin qubit systems with devices up to three quantum dots. Yet, building systems capable of performing useful quantum calculations has proven difficult due to low sample yield, as well as challenges in controlling and scaling these systems.
Silicon spin qubits are often claimed to be able to leverage decades of technology development in the semiconductor industry, due to the resemblance to transistors. However, the methods used in industry fabrication lines are little flexible and more intrusive than the processes that are currently used for quantum dot fabrication. In this talk, we demonstrate the first industrially manufactured qubits in the single-electron regime, with spin coherence properties comparable to those reported in the literature. We explore quantum-dot-based spin qubits and their suitability for scaling to larger systems. Moreover, I will give my point of view on outreach and women in physics.
11:35 - 11:50
Symmetry-guided search of novel quantum emitters: the role of spatial and spin degrees of freedom
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5
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Presentation category:
Materials Physics
Presentation summary
Recent material growth technologies provide control over the individual atoms in crystals, allowing us to explore a huge spectrum of materials beyond silicon with applications for sensing, energy harvesting, and information processing. This quest for materials engineered from the bottom-up demands an understanding of the role of each individual atom for the quantum-mechanical behavior of electrons in these systems.
In this talk, I will show how the combination of material symmetries and spin degrees of freedom can lead to localized spins that are stable, controllable, and optically accessible. This insight is brought forward by our results based on optical and microwave spectroscopy of transition-metal defects in silicon carbide. In these systems, symmetry and spin-orbit coupling combined lead to stable and isolated electronic spins. Microwave transitions between the electronic spin states are typically forbidden but arise from the interplay between electronic and nuclear spin degrees of freedom.
Our results show that quantum emitters in solids offer more engineering choices and spread of performance than typically expected, even after 20 years of work on related systems. Relating the microscopic structure of these defect centers to the relevant figures of merit for quantum application allows us to understand seemingly unintuitive results, and to predict how related systems will behave. These approaches may enable engineering of novel and application-specific emitters.
10:35 - 11:50
Nanoscale physics
- 17.2
Location: Zaal 65
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Session details
10:35 - 10:50
Back-illuminated photoemission electron microscopy
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1
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Presentation category:
Materials Physics
10:50 - 11:05
Shrinking superconducting single photon detectors with noisy SiC parallel plate capacitors
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Electron-near-field interaction strength in gold nanoparticles in a scanning electron microscope
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3
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Presentation category:
Materials Physics
11:20 - 11:35
Nano-optomechanical fiber-tip sensing
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Local contact pressure governs wear mechanisms at multi-asperity
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5
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Presentation category:
Materials Physics
10:35 - 11:50
Statistical physics & soft condensed matter + PwI prize winners
- 18.2
Location: Zaal 82-83
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Session details
10:35 - 10:50
Real-space analysis of supraparticles with icosahedral symmetry
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1
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Presentation category:
Materials Physics
10:50 - 11:05
High-throughput mechanophenotyping of multicellular spheroids using a microfluidic chip
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Optical Control of Membrane Properties Enabled by Photolipid Molecules
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3
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Presentation category:
Materials Physics
11:20 - 11:35
The effect of salt and sonication on the self-assembly of cellulose nanocrystals
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Real-Time Monitoring of Journal Bearing Condition
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5
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Presentation category:
Materials Physics
Presentation summary
Bearings are an essential component in a wide variety of areas. Two general families of bearings exist: rolling contact bearings and plain/journal bearings. The second type consist out of a static housing enclosing a rotating shaft, separate by a layer of oil to minimize friction in these bearings. However, as opposed to rolling contact bearings, for journal bearings no satisfactory method of monitoring the condition exists yet. The goal of the Sensing360 company case is to answer how to monitor the condition of a journal bearing in real-time.
We propose a method based on ultrasound scanning which allows measuring the shaft-housing distance in journal bearings under operation. Acoustic response may be used to measure lubricant film thicknesses, for that a piezo transducer is put into the shell of the bearing. The transducer emits an acoustic wave and detects a reflected wave. A high-frequency, using amplitude difference in signal, and a low-frequency, using both amplitude & phase difference, methods can determine the thickness of the lubricant gap. The former is the most promising one, as it yields a stronger signal, and depends on fewer parameters of the system. A possible drawback of this method is intensive attenuation of acoustic waves in steel at high frequencies, which can be solved by placing the emitter close to the lubricant layer. The low-frequency method can accompany it scenarios where it performs poorly.
10:35 - 11:50
Quantum physics
- 19.2
Location: Parkzaal
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Session details
10:35 - 10:50
Complete mapping of a 50-spin-qubit quantum simulator in diamond
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1
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Presentation category:
Materials Physics
10:50 - 11:05
Coherent spin dynamics of hyperfine-coupled vanadium impurities in silicon carbide
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2
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Presentation category:
Materials Physics
11:05 - 11:20
The field-free Josephson diode in a van der Waals heterostructure
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3
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Presentation category:
Materials Physics
11:20 - 11:35
Anomalous magnetotransport in electron-doped cuprates
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Towards Single Electron Spin Detection in NV-centers using Magnetic Resonance Force Microscopy
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5
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Presentation category:
Materials Physics
10:35 - 11:50
Quantum physics
- 20.2
Location: Zaal 55-58
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Session details
10:35 - 10:50
Hybrid Quantum Algorithm for Gravitational Wave Analysis
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1
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Presentation category:
Materials Physics
10:50 - 11:05
Quantum Information Scrambling in Systems with Nonlocal Interactions
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2
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Presentation category:
Materials Physics
11:05 - 11:20
Topological quantum correlation engineering in superconducting circuits
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3
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Presentation category:
Materials Physics
11:20 - 11:35
Quantum photo-thermodynamics on a programmable photonic quantum processor
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4
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Presentation category:
Materials Physics
11:35 - 11:50
Is everything quantum ‘spooky and weird’? The popular communication about quantum in TEDx talks
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5
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Presentation category:
Materials Physics
11:50 - 12:50
Lunch
Location: Kempenzaal
12:00 - 12:45
Woodland walk
Location: Meet at helpdesk Limburgfoyer
12:50 - 14:05
Poster session even numbers incl. coffee/tea
Location: Kempenzaal
Presentation category:
Materials Physics
12:50 - 13:50
Career session: Set your career in motion!
Location: Baroniezaal
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Presentation category:
Materials Physics
14:05 - 15:45
4D tracking in Particle Physics using fast-timing detectors
Location: zaal 80-81
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Presentation summary
Recent advancements of silicon particle detectors allow simultaneous high-precision measurements of both space and time. The added metric of picosecond timing will be used to distinguish quasi-simultaneous interaction vertices in HL-LHC particle detectors at CERN. Timing information will help reduce the combinatorial challenge reconstructing particle trajectories. It also enables time-of-flight measurements to identify particle species. The new technology developed for particle physics experiments may be applied to other scientific fields such as molecular imaging for pathogenic studies.
The first presentation introduces the foreseen impact of tracking in four dimensions on particle physics experiments and physics analysis. The technological developments of fast timing sensors are discussed in the 2nd presentation. The 3rd presentation focusses on the operational challenges of the fast-timing detectors requiring picosecond calibration on wide-scale detectors with billions of channels and on how to profit from the information in the most powerful way. The 4th presentation brings the example of how fast-timing detectors can be applied to the case of multi-modular molecular imaging.
Session details
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
14:05 - 15:45
Frontiers in Dense Active Matter
Location: Zaal 63-64
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Presentation summary
Active matter systems are composed of building blocks that can consume energy from the environment.
Such systems are inherently far from equilibrium and challenge our classical understanding of statistical
physics and mechanics. While early active matter studies have focused mainly on the low to moderate
density regime, recent years have seen a shift of interest toward the high-density limit. Noteworthy
examples include biological systems such as confluent cell layers, cell tissues and tumours, and the
cellular cytoplasm. But how do active elements self-organize in dense systems? This is one of the
most essential questions in statistical physics and soft matter, challenging many theoreticians and
experimentalists.
Recent years have seen several experimental and theoretical breakthroughs, decoding the challenges
associated with the physics of dense active matter. This includes the discovery of active glassy behaviour
in the cell cytoplasm and cell monolayers or the odd-elastic behaviour of chiral embryo cells at high
densities. However, there are still a large number of open questions to be answered: What are the
emergent macroscopic properties of densely packed active matter? How can we construct constitutive
models of dense active systems? To what extent is the physics of dense active matter universal? And how
can we capture the key elements of dense biological systems into synthetic or computational models?
This focus session presents four talks which will discuss the most recent developments in answering
these questions, covering dense biological (Fredberg, Henkes), active colloidal (Dijkstra), and
physico-chemical (Maaß) active matter systems.
The organizers have paid particular attention to the diversity of the speakers: two theoreticians and two
experimentalists, from four different universities, including 75% female speakers. A waiting list of great
speakers is also made, to mitigate any cancellation risk.
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
Presentation summary
Nico Schramma (UvA) & Vincent Debets (TU/e) (joint presentation)
14:05 - 15:45
Open Source Research Hardware
Location: Baroniezaal
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Presentation summary
Open-source scientific hardware is increasingly used by scientists to do research and in higher education. From public institutions such as NASA and UNESCO to various philanthropic foundations such as the Gates foundation and CZI, Open Source is now considered as the high-quality standard for reproducible and reliable scientific equipment. Two scientific journals dedicated to open hardware have together published more than 140 peer-reviewed articles in past 5 years, including special issues on Covid19 Medical Hardware, Decarbonization, Neuroscience, Microscopy, and Environmental Sensing. Several researchers in the Netherlands are pioneering this route to scientific instrumentation, and some universities have started training programs on the best practices of developing and documenting open hardware.
To reap the benefits of this rapidly expanding field, the Physics community should step up its efforts to adapt and get to the forefront. In this focus session we aim to address this central question:
How can Open Hardware help in reducing the cost of research, make science more inclusive, and accelerate the technological innovations urgently needed for the energy transition and filling the green expertise gap?
Session details
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
14:05 - 15:45
Light: The Ultimate Information Carrier
Location: Parkzaal
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Presentation summary
With zero mass, maximum speed, and an ability to conform to any shape or form we prescribe, light is the ultimate information carrier. But how much information can light convey? What limits the precision, speed, energy efficiency, and footprint of information-processing optical systems? Can current limits be surpassed, or circumvented, through greater spatiotemporal control of light? These and related questions are motivating a growing number physicists to undertake major research efforts at the frontier of nanophotonics and information processing. Their findings are revealing not only answers to important fundamental questions, but also inspiring novel optical technologies which can transform our information society in a sustainable way.
This focus session will bring together experts in information processing with optics. We will start with a world leader in the physics of light and waves, Andrea Alu (New York), who will discuss fundamental physics of analog optical computing. Next in line is Femius Koenderink (AMOLF), who will showcase the frontier of optical metrology with complex nanopatterned surfaces. Next in line is Lyuba Amitonova (ARCNL), who will demonstrate how to push the limits of high-speed imaging through fibers. Finally, Allard Mosk (Utrecht) will elucidate how to optimally shape wavefronts to ensure maximum information transfer through complex media.
Session details
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
14:05 - 15:45
Mathematical Physics
Location: Zaal 65
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Presentation summary
Mathematics and physics have been deeply intertwined since the early developments in science. Think of the interplay between Newton’s postulation of the laws of motion and the development of differential calculus, or the developments in differential geometry supporting Einstein’s formulation of general relativity. The interface of the two fields is often perceived as mathematics supplying the tools and justifications required by physicists to describe nature, but this viewpoint only partially covers the multitude of ways in which the two fields can propel each other through the exchange of ideas and challenges. This is nicely illustrated by recent awards of the highest honors in both fields to research in which this exchange was vital: the Fields medal in mathematics for Hugo Duminil-Copin’s work on phase transitions and the Nobel prize in physics for Roger Penrose’s mathematical foundations of black holes.
This focus session features expositions by researchers whose research is situated at the math-physics interface, highlighting a broad range of topics, from critical phenomena in statistical physics, solutions in Einstein’s general relativity, foundations of quantum field theory, to the microscopic structure of spacetime. These topics have in common that the physics has sparked new mathematical research fields and that subsequent mathematical developments continue to shed new light on the foundations of the physical theories.
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
14:05 - 15:45
How lightning starts
Location: Zaal 55-58
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Presentation summary
How lightning starts, is a major question in atmospheric electricity, in the scientific literature as well as in the media. Characterizing and understanding this process from molecular scales to millimetres to meters to hectometres is a challenge for observations, experiments and modelling. It also can provide a key to quantitative understanding of other lighting phenomena, including green house gas emissions and lightning protection questions.
In the focus session, four researchers will present their complementary methods and results on the initial stages of lightning discharges. Steve Cummer will discuss observations of very energetic “narrow bipolar events”. Brian Hare uses the Dutch-European radio telescope LOFAR to resolve lightning structures down to the meter scale. Sander Nijdam will present unique lab experiments on discharge inception and propagation with nanosecond resolution, and Ute Ebert will review the state of multiscale theory, building on simulations, model reduction and nonlinear dynamics.
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
14:05 - 15:45
Computational Materials Design
Location: zaal 82-83
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Presentation summary
Computational materials design is a vital tool in materials physics research and is of ever growing importance. Combining state of the art computational materials modeling and characterization, with experimental testing and validation allows for new materials to be designed for specific applications. Directly probing and predicting the correlation between the atomic scale structure and a material’s properties gives us powerful tools with which to design next generation technologies, advancing our society. Computational materials design is typically an interplay between, physics, chemistry, biology, engineering, and materials science where the understanding of the underlying physical processes are becoming increasingly important to accurately predict and understand material properties and behavior. In this focus session, we will bring together the Dutch computational materials modelling community focusing on density functional theory (DFT), molecular dynamics (MD), and multiscale modelling.
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
14:05 - 15:45
Quantum networks: Beyond quantum key distribution
Location: Brabantzaal
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Presentation summary
Everywhere in the world, quantum networks are developed, in the Netherlands most prominently by Quantum Delta NL. The traditional application of quantum networks is quantum key distribution (QKD), which enables secure communication based on the quantum no-cloning theorem. In this focus session we discuss next-generation applications of quantum networks, by exploiting other physical principles and combining them with advanced cryptographic techniques.
For instance, how does Alice know that she is quantum-communicating with Bob, and not some imposter? This is the problem of authentication of a communication channel, and the only solution to date is physical meeting and exchange of some credentials. Now, often, the spatial location of a party would be a sufficient credential, think of the secured building of a bank. Only in this year1 it was proven that, by combining quantum cryptography with special relativity, a location can be confirmed remotely – this is called quantum position verification. Similar to QKD, this is a possibility which does not exist in a classical world, a true “quantum advantage”! Nothing comes without a fine-print, we will explore issues in this focus session. Another exciting application of quantum networks is that they will enable remote quantum connections to quantum computers, true “quantum cloud computing”, enabling so-called blind or private quantum computation that might provide privacy over data and/or algorithms on the quantum computer.
In this focus session we will explain these novel applications of quantum networks beyond QKD with expert speakers from theory to experiment.
1 Bluhm, Christandl, Speelman, Nature Phys. 18, 623 (2022)
Session details
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
14:05 - 15:45
Quantum black holes, wormholes and the information paradox.
Location: Boszaal
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Presentation summary
The preeminent puzzle in quantum gravity is the nature of black holes. Thanks to Hawking we know that quantum black holes are not truly black but radiate, but in a way that appears to conflict with probability conserving unitary quantum evolution. The last few years have shone surprising new light on this information paradox. Building on ‘t Hooft-Susskind’s holographic principle, we have learned that spacetime itself can be formulated purely in terms of quantum entanglement. Using this we can for the first time take a peek behind the horizon of a black hole and have an inkling of hope to resolve the spacetime singularity of the black hole itself.
The information paradox rears it head mostly in the dynamics of black hole formation and evaporation. Simply using self-consistency of quantum evolution Donald Page predicted in the ‘90s how the associated quantum entanglement should evolve. In an impressive achievement this prediction was recently shown to be correct using this formulation of the dynamical spacetime in terms of entanglement.
The flipside of this question — how does thermodynamic behavior emerge in a collapsing black hole — has surprisingly pointed out an important role for wormholes. In conventional statistical mechanics the emergence of irreversible thermodynamic behavior originates in the chaotic nature of microscopic classical dynamics. For a subclass of black holes, Altland, Post, Sonner, van der Heijden, and Verlinde have shown that there is a rather precise way in which their quantum chaos can be understood in terms of the proliferation of wormholes between universes.
Session details
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
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Presentation category:
Materials Physics
14:05 - 15:45
Intelligent matter: physics-based approaches for new paradigms in computing
Location: Auditorium
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Presentation summary
The complex response of materials presents unique opportunities to implement computing and learning in materio. For example, neuromorphic computing focuses on creating brain-inspired hardware dedicated to implementing machine learning tasks, like pattern recognition. Nevertheless, neuromorphic computing is often far from brain-like, as an assortment of dissimilar materials and devices are used to derive functionality and often rely on external computer to implement learning or memory.
In this focus session, we will focus on burgeoning ideas to materialize intelligence in materials and devices. After all, many materials are nonlinear, hysteretic and exhibit plasticity, and this can be leveraged to compute, store information and learn. We will focus on linking ideas emerging in different fields of physics, ranging from quantum materials using charge and/or spin transport, mechanical metamaterials, and interacting polymer networks. We will discuss and explore the physical principles in these diverse approaches with a focus on linking these concepts toward creating new paradigms in brain-like computing based on self-learning, in-memory computing and actuation. This focus session will bring diverse strong Dutch research communities together.
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Materials Physics
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Materials Physics
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Materials Physics
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Presentation category:
Materials Physics
15:45 - 16:05
Break
Location: Kempenzaal
16:05 - 16:10
Introduction plenary speaker
Location: Beneluxzaal
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Presentation category:
Materials Physics
16:10 - 16:55
Plenary lecture: Emerging nanophotonic platforms for personal and population health
Location: Beneluxzaal
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Presentation category:
Materials Physics
Presentation summary
We present our efforts to develop photonic sensors suitable for field-deployment that enable early disease onset, help inform optimal treatment, and uncover new biological pathways associated with personal, population, and ecosystem-level health. First, we combine Raman spectroscopy and deep learning to accurately classify bacteria by both species and drug susceptibility in a single step. With a convolutional neural network (CNN), we achieve species identification and antibiotic susceptibility accuracies similar to leading mass spectrometry techniques. We show how this technique can be applied to rapid tuberculosis detection, as well as to waste-water monitoring of bacterial pathogens. Next, we describe resonant nanophotonic surfaces that enable detection of genes, proteins, and metabolites with femtomolar sensitivity. These metasurfaces produce a large amplification of the electromagnetic field intensity, increasing the response to minute refractive index changes from target binding; simultaneously, the light is beam-steered to particular detector pixels. By combining metasurface design with acoustic bioprinting for functionalization, we develop chips that detect gene fragments, proteins, and metabolites on the same platform. We discuss integration of these sensors with workflows in Stanford’s Clinical Virology Laboratory, as well as with autonomous underwater robots from Monterey Bay Aquarium Research Institute (MBARI) for real-time phytoplankton detection.
16:55 - 17:10
Award ceremony poster prizes
Location: Beneluxzaal
17:10 - 17:15