Quantum Cherenkov radiation and noncontact friction
Name
Maghrebi-2013-Quantum Cherenkov.pdf
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Author(s)
Golestanian, Ramin
Kardar, Mehran
Faghfoor Maghrebi, Mohammad
Date Issued
October 2013
Journal
Physical Review A
Publisher
American Physical Society
Citation
Maghrebi, Mohammad F., Ramin Golestanian, and Mehran Kardar. “Quantum Cherenkov radiation and noncontact friction.” Physical Review A 88, no. 4 (October 2013). © 2013 American Physical Society
Version
Final published version
Abstract
We present a number of arguments to demonstrate that a quantum analog of the Cherenkov effect occurs when two nondispersive half spaces are in relative motion. We show that they experience friction beyond a threshold velocity which, in their center-of-mass frame, is the phase speed of light within their medium, and the loss in mechanical energy is radiated through the medium before getting fully absorbed in the form of heat. By deriving various correlation functions inside and outside the two half spaces, we explicitly compute this radiation and discuss its dependence on the reference frame.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.88.042509
