Entanglement Property of Tripartite GHZ State in Different Accelerating Observer Frames

Autor:	Qian Dong, Roberto de Jesus León-Montiel, Guo-Hua Sun, Shi-Hai Dong
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	single mode approximation entanglement measures Dirac field noninertial frames Science Astrophysics QB460-466 Physics QC1-999
Zdroj:	Entropy, Vol 24, Iss 8, p 1011 (2022)
Druh dokumentu:	article
ISSN:	1099-4300
DOI:	10.3390/e24081011
Popis:	According to the single-mode approximation applied to two different mo des, each associated with different uniformly accelerating reference frames, we present analytical expression of the Minkowski states for both the ground and first excited states. Applying such an approximation, we study the entanglement property of Bell and Greenberger–Horne–Zeilinger (GHZ) states formed by such states. The corresponding entanglement properties are described by studying negativity and von Neumann entropy. The degree of entanglement will be degraded when the acceleration parameters increase. We find that the greater the number of particles in the entangled system, the more stable the system that is studied by the von Neumann entropy. The present results will be reduced to those in the case of the uniformly accelerating reference frame.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/783ad882eb8d4173bf10788b4d35a6e6 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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