@Article{JAMS-4-155, author = {Li , Yan and Qiao , Nao-Sheng}, title = {Effects of Disorder on Quantum Correlation of Ultracold Bose Gases Released from a Two-Dimensional Optical Lattice}, journal = {Journal of Atomic and Molecular Sciences}, year = {2013}, volume = {4}, number = {2}, pages = {155--168}, abstract = {

High-order quantum correlation provides powerful methods to reveal the quantum many-body behavior of ultracold atomic gases. In this work, the second-order quantum correlation is adopted to study the many-body behavior of ultracold Bose gases in the presence of both a two-dimensional optical lattice and weak disorder. According to investigations, it is found that even a weak disorder plays a significant role in the quantum many-body behavior, which manifests itself through the second-order quantum correlation. With the Bogoliubov theory, our studies show that both interatomic interactions and weak disorder would destroy the first-order quantum coherence of the condensate because of the depletion, and the resulting depletion has significant characteristic in the second-order correlation of the system.  

}, issn = {2079-7346}, doi = {https://doi.org/10.4208/jams.051412.060612a}, url = {http://global-sci.org/intro/article_detail/jams/8244.html} }