中国物理B ›› 2005, Vol. 14 ›› Issue (6): 1168-1173.doi: 10.1088/1009-1963/14/6/019
周玲, 衣学喜, 宋鹤山, 郭彦青
Zhou Ling (周玲), Yi Xue-Xi (衣学喜), Song He-Shan (宋鹤山), Guo Yan-Qing (郭彦青)
摘要: The thermal entanglement of spin-1 atoms with nonlinear coupling in an optical lattice chain is investigated for two-particle and multi-particle systems.It is flund that the relation between linear coupling and nonlinear coupling is the key to determine thermal entanglement, which shows in what kinds of atomsthermal entanglement exists.Thisresult is true both for two-particle and multi-particle systems. For multi-particle systems,the thermal entanglement does not decrease greatly,and the critical temperature decreases only slightly.
中图分类号: (Quantum optics)