The boundary is mixed

Eugenio Bianchi, Hal M. Haggard, Carlo Rovelli

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We show that in Oeckl’s boundary formalism the boundary vectors that do not have a tensor form represent, in a precise sense, statistical states. Therefore the formalism incorporates quantum statistical mechanics naturally. We formulate general-covariant quantum statistical mechanics in this language. We illustrate the formalism by showing how it accounts for the Unruh effect. We observe that the distinction between pure and mixed states weakens in the general covariant context, suggesting that local gravitational processes are naturally statistical without a sharp quantal versus probabilistic distinction.

Original languageEnglish (US)
Article number100
JournalGeneral Relativity and Gravitation
Volume49
Issue number8
DOIs
StatePublished - Aug 1 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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