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Q: Fachverband Quantenoptik und Photonik
Q 72: Ultra-cold Atoms, Ions and BEC V (joint session A/Q)
Q 72.4: Vortrag
Freitag, 14. März 2025, 11:45–12:00, GrHS Mathe
Floquet realization of large bosonic flux ladders in the strongly correlated regime — •SeungJung Huh1,2,3, Alexander Impertro1,2,3, Simon Karch1,2,3, Irene Rodriguez1,2,3, Immanuel Bloch1,2,3, and Monika Aidelsburger1,2,3 — 1Fakultät für Physik, Ludwig-Maximilians-Universität, 80799 Munich, Germany — 2Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany — 3Munich Center for Quantum Science and Technology (MCQST), 80799 Munich, Germany
In this talk, we will present our results on studying a strongly correlated flux ladder using a neutral atom quantum simulator. After preparing half-filled lattice Cesium atoms with tunable interaction, we experimentally realize the artificial gauge field via laser-assisted tunneling. Measuring local particle currents in a single bond resolution allows us to investigate the ground state phase diagram of interacting Hofstader-Bose Hubbard in a ladder system. We find homogeneous chiral leg current as well as strongly suppressed rung current, a hallmark of Mott-Meissner phase. Finally, we estimate the effective temperature of our system by comparing small system exact diagonalization. This will open avenues to study strongly interacting topological phases such as fractional quantum Hall states.
Keywords: quantum simulation; optical lattice; Hofstader-Bose Hubbard; strongly interacting topological phase; periodic driven system