How to define a unique vacuum in cosmology

1997/02/14 by Lluiís Bel, Bel, Lluiís
Physics and Astronomy · #Cosmology and Gravitation Theories #Black Holes and Theoretical Physics #Advanced Differential Geometry Research

paper · pdf · doi:10.48550/arxiv.gr-qc/9702028

Abstract

We propose a distinguished set of positive and negative energy modes of the Klein-Gordon equation as a time independent definition of the vacuum state of a quantized scalar field.

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