Open Quantum Systems of Particles and Principle 2 of Thermodynamics
Eliade N. Stefanescu · Journal of Physics Conference Series · 2013
We consider quantum master equations for a system of Fermions and an electromagnetic field, and apply these equations to a superradiant semiconductor structure converting environmental heat into coherent electromagnetic energy. For a non-irradiative system, these equations describe a time evolution with entropy increase, according to principle 2 of thermodynamics. However, for a superradiant system, the entropy may decrease, while the asymptotic solution of these equations, corresponding to constant entropy, describes a field radiation on the account of environmental heat absorption by Peltier effect.