Quantum information and many body physics with cold atoms  

作　　者：ZHANG XiaoFei CHEN YaoHua LIU GuoCai WU Wei WEN Lin LIU WuMing 

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]College of Science,Honghe University,Mengzi 661100,China [3]School of Science,Hebei University of Science and Technology,Shijiazhuang 050018,China

出　　处：《Chinese Science Bulletin》2012年第16期1910-1918,共9页

基　　金：supported by the National Natural Science Foundation of China (10934010, 60978019 and 11104064);the National Basic Research Program of China (2009CB930701, 2010CB922904,2011CB921502 and 2012CB821300);the Research Grants Council of Hong Kong (11061160490 and 1386-N-HKU748/10);Zhang X F is also supported by the China Postdoctoral Science Foundation (2011M500032)

摘　　要：We review our recent theoretical advances in quantum information and many body physics with cold atoms in various external potential, such as harmonic potential, kagome optical lattice, triangular optical lattice, and honeycomb lattice. The many body physics of cold atom in harmonic potential is investigated in the frame of mean-field Gross-Pitaevskii equation. Then the quantum phase transition and strongly correlated effect of cold atoms in triangular optical lattice, and the interacting Dirac fermions on honeycomb lattice, are investigated by using cluster dynamical mean-field theory and continuous time quantum Monte Carlo method. We also study the quantum spin Hall effect in the kagome optical lattice.We review our recent theoretical advances in quantum information and many body physics with cold atoms in various external potential, such as harmonic potential, kagome optical lattice, triangular optical lattice, and honeycomb lattice. The many body physics of cold atom in harmonic potential is investigated in the frame of mean-field Gross-Pitaevskii equation. Then the quantum phase transition and strongly correlated effect of cold atoms in triangular optical lattice, and the interacting Dirac fermions on honeycomb lattice, are investigated by using cluster dynamical mean-field theory and continuous time quantum Monte Carlo method. We also study the quantum spin Hall effect in the kagome optical lattice.

关 键 词：量子信息理论 冷原子物理 GROSS-PITAEVSKII方程 多体 平均场理论 蒙特卡罗方法 光晶格 相互作用 

分 类 号：O562[理学—原子与分子物理]