2013/06/24 by Shi-Jie Yang, Pei Lu, Yang, Shi-Jie +3
Chemistry · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum Gases (cond-mat.quant-gas) #Quantum optics and atomic interactions #Spectroscopy and Laser Applications #Superconductivity (cond-mat.supr-con) #cond-mat.quant-gas #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.1306.5496
6 pages, 4 figures
arxiv created 2013/06/24 · openalex publication_date 2013/06/24 · arxiv updated 2013/06/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The quantum dynamics of two-species bosons in an optical lattice is studied within the mean-field theory. The quantum coherence experiences periodical collapses and revivals, which depends on the relative strength of the inter-and intra-species interactions. The paired superfluidity and the counterflow superfluidity are identified and are verified by exact diagonaliztion in the two-site Hubbard model. We suggest a dynamical method of implementation and detection for the paired superfluid and the counterflow superfluidity in the optical lattices.