Quantum correlations in de sitter space

Jiro Soda, Sugumi Kanno, Jonathan P. Shock

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

We study quantum correlation of a massive scalar field in a maximally entangled state in de Sitter space. We prepare two observers, one in a global chart and the other in an open chart of de Sitter space. We find that the state becomes less entangled as the curvature of the open chart gets larger. In particular, for the cases of a massless and a conformally coupled scalar field, the quantum entanglement vanishes in the limit of infinite curvature. However, we find that the quantum discord never disappears, even in the limit that entanglement disappears.

本文言語英語
論文番号2
ジャーナルUniverse
3
1
DOI
出版ステータス出版済み - 3 2017
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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