Disentanglement in a two-qubit system subjected to dissipative environment: Exact analysis

OPTICS COMMUNICATIONS

卷:366

Article

Qurban, Misbah^1,2  Tahira, Rabia³  Ul-Islam, Rameez¹  Ikram, Manzoor¹ 

[1] Natl Inst Lasers & Optron, Islamabad 45650, Pakistan

[2] Pakistan Inst Engn & Appl Sci, Dept Phys & Appl Math, Islamabad 45650, Pakistan

[3] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

关键词: Entanglement dynamics;    Markov approximation;    Non-Markovian effects;    Disentanglement;    Sudden death of entanglement;   

DOI  :  10.1016/j.optcom.2016.01.055

来源: Elsevier

【 摘 要 】

We investigate the time evolution of entanglement of various entangled states of two-qubit atomic system in vacuum environment using exact analysis. Compared to our earlier work under Markov approximation [M. Ikram, F.-L. Li, M.S. Zubairy, Phys. Rev. A 75 (2007) 062336] we show that disentanglement rate is slower and sudden death times are higher than the earlier study in each set of entangled state. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

Free