Particle production and apparent decoherence due to an accelerated time delay

We study the radiation produced by an accelerated time delay acting on the left moving modes. Through analysis via the Schrödinger picture, we find that the final state is a two-mode squeezed state of the left moving Unruh modes, implying particle production. We analyze the system from an operationa...

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Bibliographic Details
Published in:Physical review. D 2018-08, Vol.98 (3), Article 036011
Main Authors: Onoe, Sho, Su, Daiqin, Ralph, Timothy. C.
Format: Article
Language:English
Subjects:
Broadband
Delay
Particle production
Time lag
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Summary:We study the radiation produced by an accelerated time delay acting on the left moving modes. Through analysis via the Schrödinger picture, we find that the final state is a two-mode squeezed state of the left moving Unruh modes, implying particle production. We analyze the system from an operational point of view via the use of self-homodyne detection with broadband inertial detectors. We obtain semianalytical solutions that show that the radiation appears decohered when such an inertial observer analyzes the information of the radiation from the accelerated time-delay source. We make a connection with the case of the accelerated mirror. We investigate the operational conditions under which the signal observed by the inertial observer can be purified.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.98.036011