Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.84.023622
Title: Probing a half-odd topological number sequence with cold atoms in a non-Abelian optical lattice
Authors: Mei, F.
Zhu, S.-L.
Feng, X.-L. 
Zhang, Z.-M.
Oh, C.H. 
Issue Date: 16-Aug-2011
Citation: Mei, F., Zhu, S.-L., Feng, X.-L., Zhang, Z.-M., Oh, C.H. (2011-08-16). Probing a half-odd topological number sequence with cold atoms in a non-Abelian optical lattice. Physical Review A - Atomic, Molecular, and Optical Physics 84 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.84.023622
Abstract: We propose an experimental scheme to probe the contribution of a single Dirac cone to the Hall conductivity as a half-odd topological number sequence. In the scheme, the quantum anomalous Hall effect in graphene is simulated with cold atoms trapped in an optical lattice and subjected to a laser-induced non-Abelian gauge field. By tuning the laser intensity to change the gauge flux, the energies of the four Dirac points in the first Brillouin zone are shifted from each other and the contribution of the single Dirac cone to the total atomic Hall conductivity is manifested. We also show that the atomic Hall numbers can be experimentally probed with atomic density profile measurements. © 2011 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/97612
ISSN: 10502947
DOI: 10.1103/PhysRevA.84.023622
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

8
checked on Dec 5, 2018

WEB OF SCIENCETM
Citations

8
checked on Dec 5, 2018

Page view(s)

38
checked on Oct 26, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.