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: Z06.00007 : Measuring individual gap closings in a Floquet-Creutz ladder
11:42 AM–11:54 AM
Live
Presenter:
Kilian Sandholzer
(ETH Zurich)
Authors:
Kilian Sandholzer
(ETH Zurich)
Joaquín Minguzzi
(ETH Zurich)
Anne-Sophie Walter
(ETH Zurich)
Zijie Zhu
(ETH Zurich)
Konrad G Viebahn
(ETH Zurich)
Tilman Esslinger
(ETH Zurich)
Strong phase modulation of a lattice potential hybridizes ground and excited bands and enables dynamic control over the topology of the coupled bands. For single-frequency modulation, these couplings appear symmetrically in quasi-momentum. Adding higher harmonic components to the drive breaks time-reversal symmetry and, therefore, individual bandgaps can be controlled. We probe experimentally the Floquet bandstructure of a driven one dimensional optical lattice and demonstrate the closing of individual gaps. In previous work this scheme has been used to engineer a Creutz ladder model. The individual gap closing indicates a topological phase transition in this model.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700