Quantum radiation produced by a uniformly accelerating charged particle in thermal random motion

Naritaka Oshita, Kazuhiro Yamamoto, Sen Zhang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We investigate the properties of quantum radiation produced by a uniformly accelerating charged particle undergoing thermal random motion, which originates from the coupling to the vacuum fluctuations of the electromagnetic field. Because the thermal random motion is regarded to result from the Unruh effect, the quantum radiation might give us hints of the Unruh effect. The energy flux of the quantum 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 quantum radiation appears to be a suppression of the classical Larmor radiation. The quantum interference effect plays an important role in this unique signature. The results are consistent with the predictions of a model consisting of a particle coupled to a massless scalar field as well as those of the previous studies on the quantum effect on the Larmor radiation.

Original languageEnglish
Article number085016
JournalPhysical Review D
Volume93
Issue number8
DOIs
Publication statusPublished - Apr 12 2016
Externally publishedYes

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charged particles
radiation
electromagnetic fields
signatures
retarding
scalars
interference
vacuum
predictions
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Quantum radiation produced by a uniformly accelerating charged particle in thermal random motion. / Oshita, Naritaka; Yamamoto, Kazuhiro; Zhang, Sen.

In: Physical Review D, Vol. 93, No. 8, 085016, 12.04.2016.

Research output: Contribution to journalArticle

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