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Vacuum effects in a vibrating cavity: time refraction, dynamical Casimir effect, and effective Unruh acceleration
Instituto Superior Tecnico.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2008 (English)In: Physics Letters A, ISSN 0375-9601, E-ISSN 1873-2429, Vol. 372, no 35, 5621-5624 p.Article in journal (Refereed) Published
Abstract [en]

Two different quantum processes are considered in a perturbed vacuum cavity: time refraction and dynamical Casimir effect. They are shown to be physically equivalent, and are predicted to be unstable, leading to an exponential growth in the number of photons created in the cavity. The concept of an effective Unruh acceleration for these processes is also introduced, in order to make a comparison in terms of radiation efficiency, with the Unruh radiation associated with an accelerated frame in unbounded vacuum.

Place, publisher, year, edition, pages
2008. Vol. 372, no 35, 5621-5624 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-33982DOI: 10.1016/j.physleta.2008.06.084ISI: 000259311600001OAI: oai:DiVA.org:umu-33982DiVA: diva2:332147
Available from: 2010-08-02 Created: 2010-05-11 Last updated: 2017-12-12Bibliographically approved

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