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arXiv · gr-qc/9803036

Global Properties of Vacuum States in de Sitter Space

Hans-Juergen Borchers·Detlev Buchholz
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Abstract

Starting from the assumption that vacuum states in de Sitter space look for any geodesic observer like equilibrium states with some a priori arbitrary temperature, an analysis of their global properties is carried out in the algebraic framework of local quantum physics. It is shown that these states have the Reeh-Schlieder property and that any primary vacuum state is also pure and weakly mixing. Moreover, the geodesic temperature of vacuum states has to be equal to the Gibbons-Hawking temperature and this fact is closely related to the existence of a discrete PCT-like symmetry. It is also shown that the global algebras of observables in vacuum sectors have the same structure as their counterparts in Minkowski space theories.

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Hans-Juergen Borchers, Detlev Buchholz. 1999-03-08. Global Properties of Vacuum States in de Sitter Space. https://arxiv.org/abs/gr-qc/9803036

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