Wednesday, February 8, 2012

1202.1485 (Mohammad F. Maghrebi et al.)

Spontaneous emission by rotating objects: A scattering approach    [PDF]

Mohammad F. Maghrebi, Robert L. Jaffe, Mehran Kardar
We study the quantum electrodynamics (QED) 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. 14, 180 (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.
View original: http://arxiv.org/abs/1202.1485

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