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Weighing the vacuum energy.
- Source :
-
Physical Review D: Particles, Fields, Gravitation & Cosmology . 4/15/2021, Vol. 103 Issue 8, p1-1. 1p. - Publication Year :
- 2021
-
Abstract
- We discuss the weight of vacuum energy in various contexts. First, we compute the vacuum energy for flat spacetimes of the form T³×R, where T³ stands for a general 3-torus. We discover a quite simple relationship between energy at radius R and energy at radius l2/R. Then we consider quantum gravity effects in the vacuum energy of a scalar field in M 3×S¹ where M 3 is a general curved spacetime, and the circle S 1 refers to a spacelike coordinate. We compute it for general relativity and generic transverse diffeomorphisms theories. In the particular case of unimodular gravity vacuum energy does not gravitate. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 24700010
- Volume :
- 103
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Physical Review D: Particles, Fields, Gravitation & Cosmology
- Publication Type :
- Periodical
- Accession number :
- 150179653
- Full Text :
- https://doi.org/10.1103/PhysRevD.103.084032