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- Title
Cosmological decoherence from thermal gravitons.
- Authors
Bao, Ning; Chatwin-Davies, Aidan; Pollack, Jason; Remmen, Grant N.
- Abstract
We study the effects of gravitationally-driven decoherence on tunneling processes associated with false vacuum decays, such as the Coleman-De Luccia instanton. We compute the thermal graviton-induced decoherence rate for a wave function describing a perfect fluid of nonzero energy density in a finite region. When the effective cosmological constant is positive, the thermal graviton background sourced by a de Sitter horizon provides an unavoidable decoherence effect, which may have important consequences for tunneling processes in cosmological history. We discuss generalizations and consequences of this effect and comment on its observability and applications to black hole physics.
- Subjects
GRAVITONS; COSMOLOGICAL constant; WAVE functions; BLACK holes; ENERGY density; FRIEDMANN equations
- Publication
Journal of High Energy Physics, 2020, Vol 2020, Issue 8, pN.PAG
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1007/JHEP08(2020)065