Issue |
EPL
Volume 84, Number 6, December 2008
|
|
---|---|---|
Article Number | 60004 | |
Number of page(s) | 5 | |
Section | General | |
DOI | https://doi.org/10.1209/0295-5075/84/60004 | |
Published online | 12 January 2009 |
Extended Haldane's model and its simulation with ultracold atoms
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University Nanjing 210093, China
Corresponding author: lifuxiang_123@163.com
Received:
29
September
2008
Accepted:
12
November
2008
Haldane's model is extended to a square lattice related close to the so-called state, in which the on-site energy is staggered and the next-nearest-neighbor hopping is anisotropic. From the phase diagram obtained, two types of phases are found, i.e., the normal insulator with Chern number and the Hall insulator with C = ± 1. We propose a way of simulating this model with cold atoms in an optical lattice. By measuring the atomic density profile, one can detect this phase diagram.
PACS: 05.30.Fk – Fermion systems and electron gas / 73.43.-f – Quantum Hall effects / 42.50.Wk – Mechanical effects of light on material media, microstructures and particles
© EPLA, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.