Frederick W. Cummings, Michael T. Tavis
A theory of Steady-State laser action is presented which loosely parallels the treatment by H. Frohlich on energy storage in biological systems. The principal lasing elements, taken as N bio level molecules and a single mode quantized radiation field are treated as a single quantum system. Laser action then is seen as a Bose-Einstein like condensation into the lowest energy mode of this correlated system when the pump power exceeds a certain critical value.
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http://arxiv.org/abs/1209.3343
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