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论文类型：期刊论文

发表时间：2015-03-01

发表刊物：ANNALS OF PHYSICS

收录刊物：SCIE

卷号：354

页面范围：590-603

ISSN号：0003-4916

关键字：Fermionic-mode entanglement; Non-Markovian dynamics; Grassmann calculus

摘要：We evaluate the non-Markovian effects on the entanglement dynamics of a fermionic system interacting with two dissipative vacuum reservoirs. The exact solution of density matrix is derived by utilizing the Feynman-Vernon influence functional theory in the fermionic coherent state representation and the Grassmann calculus, which are valid for both the fermionic and bosonic baths, and their difference lies in the dependence of the parity of the initial states. The fermionic entanglement dynamics is presented by adding an additional restriction to the density matrix known as the superselection rules. Our analysis shows that the usual decoherence suppression schemes implemented in qubits systems can also be achieved for systems of identical fermions, and the initial state proves its importance in the evolution of fermionic entanglement. Our results provide a potential way to decoherence controlling of identical fermions. (C) 2015 Elsevier Inc. All rights reserved.