Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Optical lattice with torus topology

Published

Author(s)

Hwanmun Kim, Guanyu Zhu, James V. Porto, Mohammad Hafezi

Abstract

We propose an experimental scheme to construct an optical lattice where the atoms are confined to the surface of a torus. This construction can be realized with spatially shaped laser beams which could be realized with recently developed high resolution imaging techniques. We numerically study the feasibility of this proposal by calculating the tunneling strengths for atoms in the torus lattice. To illustrate the non-trivial role of topology in atomic dynamics on the torus, we study the quantized superfluid currents and fractional quantum Hall (FQH) states on such a structure. For FQH states, we numerically investigate the robustness of the topological degeneracy. Our scheme for torus construction can be generalized to Riemann surfaces with higher genus for exploration of richer topological physics.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)

Keywords

optical lattices, torus

Citation

Kim, H. , Zhu, G. , Porto, J. and Hafezi, M. (2018), Optical lattice with torus topology, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed June 25, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created September 25, 2018, Updated October 12, 2021