Density matrix of two interacting particles with kinetic coupling derived in bipartite entangled state representation |
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| Authors: | Guo Qin |
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| Affiliation: | Department of Physics, Shanghai Jiaotong University, Shanghai 200030, China;Department of Physics, Jiangxi Normal University, Nanchang 330022, China |
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| Abstract: | A density matrix is usually obtained by solving the Bloch equation,however only a few Hamiltonians' density matrices can be analyticallyderived. The density matrix for two interacting particles withkinetic coupling is hard to derive by the usual method due to thiscoupling; this paper solves this problem by using the bipartiteentangled state representation. |
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| Keywords: | density matrix the bipartite entangled state representation kinetic coupling |
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