Density matrix of two interacting particles with kinetic coupling derived in bipartite ent

Density matrix of two interacting particles with kinetic coupling derived in bipartite entangled

state representation

Guo Qin

【期刊名称】《中国物理：英文版》 【年(卷),期】2007(016)009

【摘要】A density matrix is usually obtained by solving the Bloch equation, however only a few Hamiltonians' density matrices can be analytically derived. The density matrix for two interacting particles with kinetic coupling is hard to derive by the usual method due to this coupling; this paper solves this problem by using the bipartite entangled state representation. 【总页数】5页(2544-2548)

【关键词】density matrix, the bipartite entangled state representation, kinetic coupling 【作者】Guo Qin

【作者单位】Department of Physics, Shanghai Jiaotong University, Shanghai 200030, China;Department of Physics, Jiangxi Normal University, Nanchang 330022, China 【正文语种】中文 【中图分类】O4 【相关文献】