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A Heat Shield for de Sitter space
- Source :
- Phys. Rev. D 103, 125010 (2021)
- Publication Year :
- 2020
-
Abstract
- We investigate a quantum vacuum state for $1 + 1$ dimensional de Sitter space, corresponding to a region within a perfectly reflecting symmetric box of fixed physical size. We find that a particle detector inside the box registers zero response, implying that the walls of the box screen out the thermal effects of the de Sitter horizon. The box thus creates a `quiescent oasis' with a temperature below the de Sitter horizon temperature, an unexpected feature that opens the way to an analysis of heat and entropy exchange between the box and the horizon in the context of the generalized second law of thermodynamics. We also calculate the stress-energy-momentum tensor of the region within the box, showing that the total energy in the box is less than the same volume of de Sitter space in the presence of thermal fluctuations.<br />Comment: 9 pages
- Subjects :
- High Energy Physics - Theory
General Relativity and Quantum Cosmology
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 103, 125010 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2011.01169
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.103.125010