System-environment dynamics of X-type states in noninertial frames

Details System-environment dynamics of X-type states in noninertial frames System-environment dynamics of X-type states in noninertial frames

2011-05-06

arxiv.org/abs/1105.1216v2

Ann. Phys. (NY) 327 (2012) 283

Physics

Quantum Physics

15 pages, 3 figures

Scientific paper

The system-environment dynamics of noninertial systems is investigated. It is shown that for the amplitude damping channel: (i) the biggest difference between the decoherence effect and the Unruh radiation on the dynamics of the entanglement is the former only leads to entanglement transfer in the whole system, but the latter damages all types of entanglement; (ii) the system-environment entanglement increases and then declines, while the environment-environment entanglement always increases as the decay parameter $p$ increases; and (iii) the thermal fields generated by the Unruh effect can promote the sudden death of entanglement between the subsystems while postpone the sudden birth of entanglement between the environments. It is also found that there is no system-environment and environment-environment entanglements when the system coupled with the phase damping environment.

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