Dynamical preparation of U(1) quantum spin liquids in an analogue quantum simulator
arXiv:2604.24744 (2026)
Cs Quantum Gas Microscope
Quantum gas microscope with bosonic caesium atoms to study topological many-body phases of matter and out-of-equilibrium dynamics of strongly-interacting quantum systems. We have developed techniques to measure local kinetic operators to go beyond simple occupation measurements.
Caesium features a broad Feshbach resonance at low magnetic fields, allowing us to tune the interaction strength over a wide range. Combined with single-site resolved imaging this gives access to strongly-correlated phases in 2D optical superlattices.
Recent highlights include local readout and control of current and kinetic-energy operators, and the preparation of non-equilibrium quantum spin liquids.
Location: Ludwig-Maximilians-Universität München
Publications
Probing quantum many-body dynamics using subsystem Loschmidt echos
arXiv:2501.16995 (2025)
Strongly interacting Meissner phases in large bosonic flux ladders
Nature Physics 21, 895-901 (2025)
Emergence of fluctuating hydrodynamics in chaotic quantum systems
Nature Physics 20, 1732-1737 (2024)
Local readout and control of current and kinetic energy operators in optical lattices
Phys. Rev. Lett. 133, 063401 (2024)
An unsupervised deep learning algorithm for single-site reconstruction in quantum gas microscopes
Commun. Phys. 6, 166 (2023)
News
Nikolas Liebster receives Otto-Haxel-Award for Physics
Congratulations Nikolas! The Otto-Haxel-Award for Physics was presented for his outstanding doctoral thesis.
Our new paper on non-equilibrium quantum spin liquids is online!
In this work we prepare and study quantum spin liquids in 2D optical superlattices.
Nikolas Liebster has received the DPG SAMOP Dissertation Prize
Congratulations to Nikolas from our Cs team on his award!