Photon emission rate from atomic systems in the CSL model

Details Photon emission rate from atomic systems in the CSL model Photon emission rate from atomic systems in the CSL model

2007-07-20

arxiv.org/abs/0707.3134v4

J.Phys.A40:13395-13406,2007; J.Phys.A42:109801,2009

Physics

Quantum Physics

LaTex 16pages; minor revisions in published version v3, Added Note in v4

Scientific paper

10.1088/1751-8113/40/44/017 10.1

We calculate the photon emission rate from a general atomic system in the mass- proportional CSL model. For an isolated charged particle emitting kilovolt gamma rays, our results agree with those obtained by Fu. For a neutral atomic system, photon emission is strongly suppressed for photon wavelengths much larger than the atomic radius. However, for kilovolt gamma rays, Fu's result is modified by a structure factor that is of order unity, giving no rate suppression. Our calculation is readily generalized to the case of non-white noise, noise couplings that are not mass-proportional, and general (non-Gaussian) spatial correlation functions, and corresponding results are given. We briefly discuss the implications of our calculation for upper bounds on the CSL model parameters.

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