QuMat 2024 Yearly meeting in Twente
The second QuMat yearly meeting will take place 11 – 12 November in Twente at the Grolsch Veste!
The Yearly meeting is a two-day meeting where all QuMat scientists, and associated members as well as the two advisory boards (SAC / ISOAC) come together to share scientific results, discus challenges and opportunities within the consortium and find new cross-pillar collaborations.
Program
Below is a draft of the schedule. Please note that the exact times of the sessions are subject to change.
| Mo – 11/11 | Tu – 12/11 | |
| 09:00 – 9:30 | SAC speaker: Peter Liljeroth | |
| 09:30 – 10:00 | Guest speaker: Pepijn Pinkse | |
| 10:00 – 10:30 | Walk in | Break |
| 10:30 – 11:00 | Welcome and News | Plenary session 3 |
| 11:00 – 11:30 | Guest speaker: Silke Bühler-Paschen | |
| 11:30 – 12:00 | Pillar Updates | Stadium tour |
| 12:00 – 12:30 | Lunch | Lunch |
| 12:30 – 13:00 | ||
| 13:00 – 13:30 | Parallel session (1A / 1B) | Parallel session (4A / 4B) |
| 13:30 – 14:00 | ||
| 14:00 – 14:30 | Final words / summary | |
| 14:30 -15:00 | Break + Group photo | Break |
| 15:00 – 15:30 | Parallel session (2A / 2B) | Bus to site visit |
| 15:30 – 16:00 | Site Visit / EB Meeting | |
| 16:00 – 16:30 | Poster Pitch | |
| 16:30 – 17:00 | Poster session + Refreshments | |
| 17:00 – 17:30 | ||
| 17:30 – 18:00 | ||
| 18:00 – 18:30 | Dinner | |
| 18:30 – 19:00 | ||
| 19:00 – 19:30 | ||
| 19:30 – 20:00 | Walk+Tram to activity | |
| 20:00 – 20:30 | Evening activity Snooker & Pool Enschede | |
| 20:30 – 21:00 | ||
| 21:00 – 21:30 |
Joint and parallel sessions
Day 1
Plenary Guest Session
Speaker: Silke Paschen, Vienna University of Technology
Titel: Witnessing entanglement in a strange metal
Abstract:
It is generally considered to be notoriously difficult to define, detect, or even quantify entanglement in condensed matter systems. I will discuss the potential of the “strange metal” state to make progress. Strange metal behavior – best known as a linear-in-temperature electrical resistivity at low temperatures instead of the normal Fermi liquid square-in-temperature one – occurs across many classes of quantum materials [1,2]. Its full understanding is a major challenge. Heavy fermion compounds are particularly versatile model materials for studying this physics: they are comparatively simple, clean, and highly tunable, and several characteristics beyond linear-in-temperature resistivity have already been identified. I will give an overview and highlight recent results, including dynamical scaling of the terahertz conductivity [3], strongly suppressed shot noise [4], and a quantum Fisher information analysis of inelastic neutron scattering data [5].
[1] S. Paschen, Q. Si, Nat. Rev. Phys. 3, 9 (2021).[2] J. G. Checkelsky, B. A. Bernevig, P. Coleman, Q. Si, & S. Paschen, Nat. Rev. Mater. 9, 509 (2024).[3] L. Prochaska et al., Science 367, 285 (2020).[4] L. Chen et al., Science 382, 907 (2023).[5] F. Mazza et al., arXiv:2403.12779 (2024).
Parallel session 1A: Topological Superconductivity
- Marieke Altena – Pushing transport to the edge in WTe2
Parallel session 1B: Topological Theory
- Lumen Eek – Isospectral topology
- Diego Felipe Muñoz Arboleda – Thermodynamics and entanglement entropy of the non-Hermitian SSH model
- Anouar Moustaj – Topological phase of the interacting SSH model
- Bowy La Riviere – Z4 transitions in quantum loop models on a zig-zag ladder
Parallel Session 2A – Photons & Spin
- Lucas Maisel Licerán – High-temperature unconventional excitonic insulators from band geometry
- Cedric Cordero Silis – Van der Waals Materials for Polarization-Sensitive All-2D Photodetectors
- William Huddie – Entropic magnetic interactions
Parallel Session 2B – General advancements
Poster Pitch
As part of this Yearly meeting, we will begin the poster session with a short poster pitch round.
For the 1-minute pitch, you are allowed to show ONE STATIC slide (PDF or JPEG/PNG). You will be called individually to the stage to pitch your poster. All slides will be collected by the QuMat office in advance and shown from a central computer. We look forward to reeving your slide and poster title, no later than Monday November 6th.
Poster Session
- Krishnaraajan Sundararajan – Alternative injector/detector platform for magnons: WTe2
- Esther van de Logt – Transport measurements in hexagonale Silicon geranium nanowires
- Viktoriia Radovskaia – Ultrafast control of magnetism via orbital excitation in Ni-doped 2D-antiferromagnet MnPS3
- Chrystalla Knekna – Chemical-potential tuning in the type-II Dirac semimetal PtTe2-xBix
- Zeb Osseweijer – A Fractal Haldane model
- Esra van ‘t Westende – Phase transitions and interactions of germanene nanoribbons
Day 2
SAC Guest Session
Speaker: Peter Liljeroth
Titel: Visualizing complex electronic states in van der Waals heterostructures
Abstract:
Conventional materials hosting complex quantum phases often have intricate atomic structures, defects, impurities, and dopants that hinder the precise engineering of their electronic properties. This challenge can be addressed using van der Waals (vdW) materials and their heterostructures, which combine a broad range of vdW building blocks with proximity effects that allow controlled interactions between adjacent layers. These features have enabled the realization and design of exotic quantum phases and engineered responses not typically found in natural materials. I will highlight these concepts through recent results on monolayer multiferroic materials and vdW heterostructures exhibiting artificial heavy fermion states. Together, these examples illustrate the remarkable versatility and adaptability of vdW heterostructures in creating and controlling quantum states that are elusive in naturally occurring systems.
Plenary Guest Session
Speaker: Pepijn Pinkse
Titel: Material choices in Photonic Quantum Technology
Abstract:
In the Adaptive Quantum Optics group research is performed into fundamental understanding of the quantum optics of light and its applications. We focus on two topics: 1) Quantum security and 2) quantum information processing. In the first topic, we focus on light scattering media for photonic hardware keys. The optical materials need to be strongly scattering, have low losses, be stable and temperature insensitive. For the second topic, a more and more important technology is integrated photonics circuits. Here the choice of the material platform is of utmost importance and several partially complementary and partially competing material platforms are struggling for dominance. Twente, e.g., is known for its low-loss SiN. Since quantum particles of light cannot be amplified, losses must be avoided to exceedingly high levels. At the same time, the circuits should be small and hence cost effective and functional building blocks must exist with low insertion loss. We’ll review some of the developments and show some results with our choice of materials.
Plenary Session 3
- Matthieu Verstraete – First-principles transport including magnetic and spin-orbit effects
Parallel Session 4A – Topology Experiments
Parallel Session 4B – Topology Theory
- Robert Cañellas Núñez – Topological edge and corner states in bismuth fractal nanostructures
- Marcus Bäcklund – Topological Classification of Multifold Exceptional Points
- Montserrat Navarro Espino – First-principles study of Bi(trimer) on a Ge(111) surface
Plenary Guest Session
Speaker: Pepijn Pinkse
Titel: Material choices in Photonic Quantum Technology
Abstract:
In the Adaptive Quantum Optics group research is performed into fundamental understanding of the quantum optics of light and its applications. We focus on two topics: 1) Quantum security and 2) quantum information processing. In the first topic, we focus on light scattering media for photonic hardware keys. The optical materials need to be strongly scattering, have low losses, be stable and temperature insensitive. For the second topic, a more and more important technology is integrated photonics circuits. Here the choice of the material platform is of utmost importance and several partially complementary and partially competing material platforms are struggling for dominance. Twente, e.g., is known for its low-loss SiN. Since quantum particles of light cannot be amplified, losses must be avoided to exceedingly high levels. At the same time, the circuits should be small and hence cost effective and functional building blocks must exist with low insertion loss. We’ll review some of the developments and show some results with our choice of materials.
De Grolsch Veste
Colosseum 65
7521 PP Enschede
Travel by Train:
If you read this you are most likely not traveling from Enschede. In that case, you should get of in Hengelo and take the sprinter the last bit to the station. The sprinter stops outside the stadium and you then walk to the far side of the stadium.
Travel by Car:
Parking is free since it’s not a match day. The Grosh Veste website has many detailed instructions on travel and parking.
Site visit - University of Twente
On the second day of the program we will organizing a site visit of the facilities in Twente University.
A bus will pick up up for transportation between the Grolsch Veste and the UT. During the site visit, you can leaver your luggage in the bus.
After the visit, the bus till bring everyone to the Enschede central station.
Evening social activity
After the dinner on day 1, we are planning an evening activity at the Snooker & Poolcentrum Enschede, in the center of Enschede.
We will travel as a group from the stadium to the event.
Stadium tour
There will be a stadium tour. It will be available in both English and Dutch.
Hotels
Below is a list of hotels within reach of the Grolsh Veste. The stadium is easily reached from the city center of Enschede.
If you wish to take part in the evening activity, we recommend you book a hotel near the Enschede city center.
Intercity hotel Enschede, in the center of Enschede, ideal if you are taking part in the evneing activity.
Fletcher hotel de Broeierd, within walking distance from the Grolsch Veste.
Hospitaliteit, a small scale B&B in an old military hospital. www.hospitaliteit.nl
Van der Valk, for those that come with a car.
‘t Lansink Hengelo, a somewhat higher-end hotel
Registration
The registration is closed on Tuesday 15 October. If you still would like to register, please contact Mikael Fremling.
Local organizers
The yearly meeting is organized locally by Alexander Brinkman, Thijs Roskamp, Feike van Veen, Esther van de Logt together with the QuMat office.