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Open Quantum Systems Decoherence
Quantum Gravity Relativistic Quantum Information
Entanglement Theory Quantum Correlations
Cosmological horizons radiate
arXiv
Authors: Ulf Leonhardt
Year
2020
Paper ID
19155
Status
Preprint
Abstract Read
~2 min
Abstract Words
100
Citations
N/A
Abstract
Gibbons and Hawking [Phys. Rev. D 15, 2738 (1977)] have shown that the horizon of de Sitter space emits radiation in the same way as the event horizon of the black hole. But actual cosmological horizons are not event horizons, except in de Sitter space. Nevertheless, this paper proves Gibbons' and Hawking's radiation formula as an exact result for any flat space expanding with strictly positive Hubble parameter. The paper gives visual and intuitive insight into why this is the case. The paper also indicates how cosmological horizons are related to the dynamical Casimir effect, which makes experimental tests with laboratory analogues possible.
Why This Paper Matters
- This paper contributes to the Quantum Gravity & Relativistic Quantum Information research area in the Quantum Articles archive.
- It adds a 2020 reference point for readers tracking recent quantum research.
- Gibbons and Hawking [Phys.
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