Multipartite entanglement for open system in noninertial frames

Details Multipartite entanglement for open system in noninertial frames Multipartite entanglement for open system in noninertial frames

2011-03-25

arxiv.org/abs/1103.4903v1

Physics

Quantum Physics

19 pages, 10 figures

Scientific paper

Based on Greenberger-Horne-Zeilinger ($GHZ$) and $W$ initial states, the tripartite entanglement of a fermionic system under the amplitude damping channel and in depolarizing noise when two subsystems accelerated is investigated. Unlike the case of two-qubit system in which sudden death occurs easily, we find here that the sudden death never occurs even all subsystems are under the noise environment. We note that both acceleration and environment can destroy the symmetry between the subsystems, but the effect of environment is much stronger than that of acceleration. We also show that an entanglement rebound process will take place when $P>0.75$ in the depolarizing noise and the larger acceleration will result in the weaker rebound process.

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