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

TL;DR

This paper investigates how acceleration influences genuine tripartite entanglement, revealing that the Unruh and anti-Unruh effects do not have straightforward impacts, with entanglement sometimes increasing or decreasing regardless of these effects.

Contribution

It demonstrates that the Unruh and anti-Unruh effects do not have a direct correlation with entanglement changes, providing new insights into relativistic quantum entanglement behavior.

Findings

Unruh effect can both decrease and increase tripartite entanglement.

Anti-Unruh effect can both decrease and increase tripartite entanglement.

Extension of analysis from tripartite to N-partite systems.

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.