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- W2181425884 abstract "We consider the entanglement entropy of a free massive scalar field in the one parameter family of α-vacua in de Sitter space by using a method developed by Maldacena and Pimentel. An α-vacuum can be thought of as a state filled with particles from the point of view of the Bunch-Davies vacuum. Of all the α-vacua we find that the entanglement entropy takes the minimal value in the Bunch-Davies solution. We also calculate the asymptotic value of the Rényi entropy and find that it increases as α increases. We argue these features stem from pair condensation within the non-trivial α-vacua where the pairs have an intrinsic quantum correlation." @default.
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- W2181425884 date "2014-07-01" @default.
- W2181425884 modified "2023-10-06" @default.
- W2181425884 title "Entanglement entropy of α-vacua in de Sitter space" @default.
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- W2181425884 doi "https://doi.org/10.1007/jhep07(2014)072" @default.
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