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Abstract: Quiet or sub-Poissonian oscillators generate a number of dissipation eventswhose variance is less than the mean. It was shown in 1984 by Golubev andSokolov that lasers driven by regular pumps are quiet in that sense. Thepurpose of this paper is to show that, as long as the laser-detector system isstrictly stationary, quantization of the optical field is not required toexplain such phenomena. The theory presented here is semi-classical, yet exact.Previous theories considering excited-state atoms regularly-injected inresonators, on the other hand, do require in principle light quantization.Specifically, we consider a laser involving a single electron permanentlyinteracting with the field and driven by a constant-potential battery, andpoint out a similarity with reflex klystrons. The detected noise is found to beonly 7-8 of the shot-noise level. It is therefore sub-Poissonian. Ourcalculations are related to resonance-fluorescence treatments but withdifferent physical interpretations.



Author: Jacques Arnaud IES, Laurent Chusseau IES, Fabrice Philippe LIRMM

Source: https://arxiv.org/







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