Late-time quantum radiation by a uniformly accelerated detector in de Sitter spacetime

Shumpei Yamaguchi, Rumi Tatsukawa, Shih Yuin Lin, Kazuhiro Yamamoto

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

We investigate the quantum radiation emitted by a uniformly accelerated Unruh-DeWitt detector in de Sitter spacetime. We find that there exists a nonvanishing quantum radiation at late times in the radiation zone of the conformally flat coordinates, which cover the region behind the cosmological horizon for the accelerated detector. The theoretical structure of producing the late-time quantum radiation is similar to that of the same model in Minkowski spacetime: it comes from a nonlocal correlation of the quantum field in the Bunch-Davies vacuum state, which can be traced back to the entanglement between the field modes defined in different regions in de Sitter spacetime.

本文言語英語
論文番号105012
ジャーナルPhysical Review D
98
10
DOI
出版ステータス出版済み - 2018
外部発表はい

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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