Acceleration-induced radiation from a qudit particle detector model

Fuente: arXiv
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Auteurs principaux: Gallock-Yoshimura, Kensuke, Osawa, Yuki, Nambu, Yasusada
Format: Preprint
Publié: 2025
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author Gallock-Yoshimura, Kensuke
Osawa, Yuki
Nambu, Yasusada
author_facet Gallock-Yoshimura, Kensuke
Osawa, Yuki
Nambu, Yasusada
contents We nonperturbatively examine the emission rate of acceleration-induced radiation from a uniformly accelerated gapless qudit-type Unruh-DeWitt detector. We find that the emission rate can be written as Larmor's formula multiplied by a factor that depends on the detector's initial state. In particular, certain initial states of integer-spin detectors do not produce radiation. Although the appearance of Larmor's formula may suggest a classical phenomenon, we argue that the resulting radiation is fundamentally distinct from that of structureless classical sources, as it evolves into a multimode coherent state correlated with the detector's internal degree of freedom. Thus, gapless detectors cannot be treated as structureless sources, as previously proposed.
format Preprint
id arxiv_https___arxiv_org_abs_2502_06945
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Acceleration-induced radiation from a qudit particle detector model
Gallock-Yoshimura, Kensuke
Osawa, Yuki
Nambu, Yasusada
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Quantum Physics
We nonperturbatively examine the emission rate of acceleration-induced radiation from a uniformly accelerated gapless qudit-type Unruh-DeWitt detector. We find that the emission rate can be written as Larmor's formula multiplied by a factor that depends on the detector's initial state. In particular, certain initial states of integer-spin detectors do not produce radiation. Although the appearance of Larmor's formula may suggest a classical phenomenon, we argue that the resulting radiation is fundamentally distinct from that of structureless classical sources, as it evolves into a multimode coherent state correlated with the detector's internal degree of freedom. Thus, gapless detectors cannot be treated as structureless sources, as previously proposed.
title Acceleration-induced radiation from a qudit particle detector model
topic General Relativity and Quantum Cosmology
High Energy Physics - Theory
Quantum Physics
url https://arxiv.org/abs/2502.06945