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arXiv · 2311.09943

The Unruh vacuum and the in-vacuum in the Reissner-Nordstr\"om spacetime

Roberto Balbinot·Alessandro Fabbri
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Abstract

The Unruh vacuum is widely used as quantum state to describe black hole evaporation since near the horizon it reproduces the physical state of a quantum field, the so called in-vacuum, in the case the black hole is formed by gravitational collapse. We examine the relation between these two quantum states in the background spacetime of a Reissner-Nordstr\"om black hole (both extremal and not) highlighting similarities and striking differences.

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Roberto Balbinot, Alessandro Fabbri. 2023-11-16. The Unruh vacuum and the in-vacuum in the Reissner-Nordstr\"om spacetime. https://doi.org/10.3390/universe10010018

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