Black-hole powered quantum coherent amplifier
Quantum Physics
2025-08-05 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
Atoms falling into a black hole (BH) through a cavity are shown to enable coherent amplification of light quanta powered by the BH gravitational vacuum energy. This process can harness the BH energy towards useful purposes, such as propelling a spaceship trapped by the BH. The process can occur via transient amplification of a signal field by falling atoms that are partly excited by Hawking radiation reflected by an orbiting mirror. In the steady-state regime of thermally equilibrated atoms that weakly couple to the field, this amplifier constitutes a BH-powered quantum heat engine. The envisaged effects substantiate the thermodynamic approach to BH acceleration radiation.
Cite
@article{arxiv.2307.04672,
title = {Black-hole powered quantum coherent amplifier},
author = {Avijit Misra and Pritam Chattopadhyay and Anatoly Svidzinsky and Marlan O. Scully and Gershon Kurizki},
journal= {arXiv preprint arXiv:2307.04672},
year = {2025}
}