Tripartite entanglement of fermionic system in accelerated frames

TL;DR

This paper investigates how tripartite entanglement in fermionic systems behaves under acceleration, revealing its robustness and potential advantages over bipartite entanglement in noninertial frames.

Contribution

It provides a detailed analysis of tripartite entanglement dynamics in accelerated frames, highlighting its resilience and invariance properties compared to bipartite entanglement.

Findings

Tripartite entanglement does not vanish even at infinite acceleration.

Acceleration does not generate entanglement in bipartite subsystems.

Tripartite entanglement degrades faster when two observers are accelerated.

Abstract

The dynamics of tripartite entanglement of fermionic system in noninertial frames through linear contraction criterion when one or two observers are accelerated is investigated. In one observer accelerated case the entanglement measurement is not invariant with respect to the partial realignment of different subsystems and for two observers accelerated case it is invariant. It is shown that the acceleration of the frame does not generate entanglement in any bipartite subsystems. Unlike the bipartite states, the genuine tripartite entanglement does not completely vanish in both one observer accelerated and two observers accelerated cases even in the limit of infinite acceleration. The degradation of tripartite entanglement is fast when two observers are accelerated than when one observer is accelerated. It is shown that tripartite entanglement is a better resource for quantum information processing than the bipartite entanglement in noninertial frames .