Entanglement Entropy of de Sitter Space \alpha-Vacua
Norihiro Iizuka, Toshifumi Noumi, Noriaki Ogawa
TL;DR
This paper extends the study of entanglement entropy in de Sitter space to include -vacua, calculating the entropy for a free scalar field in the half-sphere at late times.
Contribution
It introduces a generalization of previous entanglement entropy analysis to -vacua in de Sitter space, providing new insights into quantum field entanglement in these states.
Findings
Computed entanglement entropy for -vacua in de Sitter space.
Extended previous models to include a broader class of vacua.
Analyzed late-time behavior of scalar field entanglement.
Abstract
We generalize the analysis of arXiv:1210.7244 to de Sitter space \alpha-vacua and compute the entanglement entropy of a free scalar for the half-sphere at late time.
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