Journal
CLASSICAL AND QUANTUM GRAVITY
Volume 38, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6382/abc8c8
Keywords
Hawking radiation; quantum optics approximation; quantum harmonic oscillator
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In this study, a quantum optics treatment was used to analyze the behavior of a quantum oscillator freely falling into a pre-existing Schwarzschild black hole, where it was found that the oscillator radiates positive energy to infinity and negative energy into the black hole as it attempts to reach equilibrium with the ambient vacuum. The model's relationship to Hawking radiation is discussed.
We present a quantum optics treatment of the near horizon behaviour of a quantum oscillator freely-falling into a pre-existing Schwarzschild black hole. We use Painleve-Gullstrand coordinates to define a global vacuum state. In contrast to an accelerated oscillator in the Minkowski vacuum, where there is no radiation beyond an initial transient, we find that the oscillator radiates positive energy to infinity and negative energy into the black hole as it attempts to come into equilibrium with the ambient vacuum. We discuss the relationship of the model to Hawking radiation.
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