Genuine multipartite entanglement subject to the Unruh and anti-Unruh effects

Abstract

We study the acceleration effect on the genuine tripartite entanglement for one or two accelerated detector(s) coupled to the vacuum field. Surprisingly, we findthatthe increase anddecrease in entanglement have no definite correspondence with the Unruh and anti-Unruh effects. Specifically, Unruh effect can not only decrease but also enhance the tripartite entanglement between detectors; also, anti-Unruh effect can not only enhance but also decrease the tripartite entanglement. We give an explanation of this phenomenon. Finally, we extend the discussion from tripartite to N-partite systems.

20 pages, 5 figures

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• Circular motion analogue Unruh effect in a $2+1$ thermal bath: Robbing from the rich and giving to the poor
• Basis-independent quantum coherence and its distribution under relativistic motion
• Genuine four-partite Bell nonlocality in the curved spacetime
• Optimal quantum strategy for locating Unruh channels
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• System-environment dynamics of GHZ-like states in noninertial frames