Entanglement extracted from vacuum into accelerated Unruh-DeWitt detectors and energy conservation

Jun Ichirou Koga, Kengo Maeda, Gen Kimura

研究成果: Article査読

10 被引用数 (Scopus)


We consider a pair of two-level Unruh-DeWitt detectors accelerated uniformly in the Minkowski vacuum of a massless neutral scalar field and analyze, within the perturbation theory, the entanglement extracted from the vacuum into the Unruh-DeWitt detectors when the switching of the detectors is performed adiabatically enough at the asymptotic past and future. We consider the cases where the detectors are accelerated parallelly, antiparallelly, and in differently orientated directions. We show that entanglement is extracted if they are accelerated antiparallelly and the ratios of the excitation energy to the magnitude of the acceleration coincide between the two detectors. On the other hand, we find that the detectors are not entangled when the detectors are accelerated parallelly or in orientated directions. We discuss these results from the viewpoint of the energy conservation associated with the timelike boost Killing vector fields tangent to the worldlines of the detectors.

ジャーナルPhysical Review D
出版ステータスPublished - 2019 9月 23

ASJC Scopus subject areas

  • 物理学および天文学(その他)


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