Spontaneous Emission by Rotating Objects: A Scattering Approach
We study the quantum electrodynamics vacuum in the presence of a body rotating along its axis of symmetry and show that the object spontaneously emits energy if it is lossy. The radiated power is expressed as a general trace formula solely in terms of the scattering matrix, making an explicit connec...
Main Authors: | , , |
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Other Authors: | , |
Format: | Article |
Language: | English |
Published: |
American Physical Society,
2012-08-30T14:50:08Z.
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Subjects: | |
Online Access: | Get fulltext |
Summary: | We study the quantum electrodynamics vacuum in the presence of a body rotating along its axis of symmetry and show that the object spontaneously emits energy if it is lossy. The radiated power is expressed as a general trace formula solely in terms of the scattering matrix, making an explicit connection to the conjecture of Zel'dovich [ JETP Lett. 180 14 (1971)] on rotating objects. We further show that a rotating body drags along nearby objects while making them spin parallel to its own rotation axis. United States. Dept. of Energy (agreement no. DF-FC02-94ER40818) National Science Foundation (U.S.) (grant no. DMR-08-03315) |
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