Greenhorn Meeting 2026

Session

Quantumsimulation

6 Oct 2026, 11:45

Institute for Quantum Physics

Conveners

Quantumsimulation

• Hans Michel (Universität Hamburg)

Quantumsimulation

• There are no conveners in this block

10. Towards imaging of 6Li using near-resonant tweezers

Magnus Michael Rusch (Universität Tübingen)

06/10/2026, 11:45

Talk

We present the current status of our experimental setup for imaging ${}^6$Li atoms in near-resonant optical tweezers.

The tweezers are generated using light at a wavelength of $674.6 \text{ nm}$, close to the ${}^6$Li $D$-line resonance at $671 \text{ nm}$. This configuration provides a promising platform for combination with an optical lattice operating at $841 \text{ nm}$. The chosen...

16. Towards high-resolution manipulation of a fermionic lithium-6 quantum gas

David Gopalan (RPTU Kaiserslautern-Landau)

06/10/2026, 12:00

Talk

Ultracold quantum gases are versatile model systems for quantum simulation, since both the quantum gas itself and its surrounding potential landscape can be controlled with high precision [1].
The generation of nearly arbitrary optical potentials is made possible through Digital Micromirror Devices (DMDs), which consist of arrays of individually tiltable micrometer-sized mirrors.
Here, I...

34. Controlled preparation of double Well eigenstates with high fidelities

Om Pote (Johannes Gutenberg Universität-Mainz)

06/10/2026, 12:15

Talk

Abstract

The preparation of excited many-body eigenstates is a central challenge in quantum simulation. In the Fermi–Hubbard model, the double well constitutes a local building block of a many body extended system. In this thesis, a controlled scheme for preparing two-particle eigenstates of a repulsively interacting fermions in a double-well system is developed and experimentally...

15. Characterizing RF-Induced Pressure Variations in Glass-Cell Vacuum Systems

Vicente Yael Baca Montero (RPTU Kaiserslautern Landau)

07/10/2026, 11:30

Talk

In recent years, radio-frequency (RF) magnetic fields have become increasingly important tools in ultracold-atom and quantum-gas experiments. Because many of these experiments rely on glass-cell vacuum chambers, where stable ultra-high vacuum (UHV) is critical, it is essential to verify that the presence of an RF coil (or any source of time-dependent magnetic fields) does not compromise vacuum...

40. The superradiant phase transition driven by squeezed light

Juan Antonio Luna Gutierrez (RPTU Kaiserslautern and University of Hamburg)

07/10/2026, 11:45

Talk

The superradiant phase transition takes place when an ensemble of ultracold atoms collectively coupled to a single-mode cavity is transversally driven by a classical coherent pump. Above a critical drive strength, the system transitions from a normal to a superradiant phase, building up a non-zero cavity field while the atoms form a crystalline pattern. In this work, we extend this standard...