A generalized McLerran-Toimela formula expresses the photon emission-absorption balance in a rotating plasma through the photon polarization tensor, yielding a one-loop soft-photon enhancement and superradiance for modes with energy below mΩ.
Electromagnetic radiation at extreme angular velocity
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abstract
We consider a system rotating at extremely high angular velocity, so that its matter is found mostly at the light-cylinder. We posit that it can be described by quantum fields confined to the two-dimensional cylindrical surface rotating about its symmetry axis. We apply this model to study the electromagnetic radiation. In particular, we compute the photon spectrum emitted by the quark-gluon plasma.
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Photon emission from rotating plasmas: a generalized McLerran-Toimela formula and the onset of superradiance
A generalized McLerran-Toimela formula expresses the photon emission-absorption balance in a rotating plasma through the photon polarization tensor, yielding a one-loop soft-photon enhancement and superradiance for modes with energy below mΩ.