Unruh radiation produced by a uniformly accelerating charged particle coupled to vacuum fluctuations ∗

Naritaka Oshita, Kazuhiro Yamamoto, Sen Zhang

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

A particle in a uniformly accelerated motion exhibits Brownian random motions around the classical trajectory due to the coupling to the field vacuum fluctuations. Previous works show that the Brownian random motions satisfy the energy equipartition relation. Because this thermal property is understood as the consequence of the Unruh effect, this quantum radiation is termed Unruh radiation. We investigate the properties of Unruh radiation produced by a uniformly accelerating particle undergoing thermal random motions, which originate from the coupling to the vacuum fluctuations of a massless scalar field as well as an electromagnetic field. The energy flux of Unruh radiation is negative and smaller than that of Larmor radiation by one order in a/m, where a is the constant acceleration and m is the mass of the particle. Thus, the Unruh radiation appears to be a suppression of the classical Larmor radiation. The result is consistent with the previous studies on the quantum effect on the Larmor radiation.

本文言語英語
ホスト出版物のタイトルProceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015
出版社Kyoto University, Yukawa Institute for Theoretical Physics
ページ1385-1396
ページ数12
ISBN(電子版)9780000000002
出版ステータス出版済み - 2015
外部発表はい
イベント25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015 - Kyoto, 日本
継続期間: 12 7 201512 11 2015

出版物シリーズ

名前Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015
5

会議

会議25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015
Country日本
CityKyoto
Period12/7/1512/11/15

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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