PT Journal
AU Balbinot, R
   Fabbri, A
TI The Unruh Vacuum and the "In-Vacuum" in Reissner-Nordström Spacetime
SO Universe
JI Universe
PY 2024
BP 18 - 14pp
VL 10
IS 1
DI 10.3390/universe10010018
LA English
DE Hawking radiation; Unruh vacuum; Reissner-Nordstrom black holes
AB The Unruh vacuum is widely used as a 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 where a black hole is formed by gravitational collapse. We examine the relation between these two quantum states in the background spacetime of a Reissner-Nordstrom black hole (both extremal and not), highlighting the similarities and striking differences.
ER