Steady states in cavity QED due to incoherent pumping
Girish Saran Agarwal, S. Dutta Gupta · Physical Review A · 1990
It is shown that strong competition between the absorption and emission of the cavity photons and the incoherent processes like atomic spontaneous emission and cavity decay effects result in new nonequilibrium states in cavity quantum electrodynamics. Such states can exhibit saturation, nonclassical character, and strong atom-cavity correlation.