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arXiv · 2311.09025

Gravitational bremsstrahlung and the Fulling-Davies-Unruh thermal bath

João P. B. Brito·Luís C. B. Crispino·Atsushi Higuchi
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Abstract

The electromagnetic radiation emitted by an accelerated charged particle can be described theoretically as the interaction of the charge with the so-called Fulling-Davies-Unruh thermal bath in the coordinate frame co-accelerated with the charge. We present a similar analysis on the gravitational radiation from a classical point mass uniformly accelerated, being pulled by a string satisfying the weak energy condition. In particular, we derive the interaction rate (with fixed transverse momentum) of this system of the point mass and string in the Fulling-Davies-Unruh thermal bath in the co-accelerated frame and show that it equals the graviton emission rate calculated in the standard method in Minkowski spacetime.

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João P. B. Brito, Luís C. B. Crispino, Atsushi Higuchi. 2023-11-15. Gravitational bremsstrahlung and the Fulling-Davies-Unruh thermal bath. https://doi.org/10.1103/physrevd.109.064080

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