Bulletin of the American Physical Society
52nd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 66, Number 6
Monday–Friday, May 31–June 4 2021; Virtual; Time Zone: Central Daylight Time, USA
Session Z06: Synthetic Gauge Fields and Spin-Orbit Coupling in Bose and Fermi Gases
10:30 AM–12:30 PM,
Friday, June 4, 2021
Chair: Karina Jiménez Garcia, CINVESTAV - Querétaro
Abstract: Z06.00009 : Probing quantum phases and the Hall response in bosonic flux ladders
12:06 PM–12:18 PM
Live
Presenter:
Maximilian Buser
(Ludwig-Maximilians-Universitaet (LMU-Mun)
Authors:
Maximilian Buser
(Ludwig-Maximilians-Universitaet (LMU-Mun)
Sebastian Greschner
(Univ of Geneva)
Claudius Hubig
(Max-Planck-Institut für Quantenoptik, Garching, Germany)
Leticia Tarruell
(ICFO-The Institute of Photonic Sciences)
Fabian Heidrich-Meisner
(University of Gottingen)
Thierry Giamarchi
(Univ of Geneva)
Ulrich J Schollwoeck
(Ludwig-Maximilians-Universitaet (LMU-Munich))
Second, we concentrate on the Hall response. While flux ladders are the most simple lattice models giving rise to the Hall effect, the theoretical description of the ground-state Hall response in these systems remains a tricky problem and an active line of research. We discuss feasible schemes to extend measurements of the Hall polarization to a study of the Hall voltage, allowing for direct comparison with solid state systems. Most importantly, we report on characteristic zero crossings and a remarkable robustness of the Hall voltage with respect to interaction strengths, particle fillings, and ladder geometries, which is unobservable in the Hall polarization.
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