Quantum theory of dissipation of a harmonic oscillator coupled to a nonequilibrium bath; Wigner-Weisskopf decay and physical spectra

Jyotipratim Ray Chaudhuri, Bimalendu Deb, Gautam Gangopadhyay Deb Shankar Ray

We extend the quantum theory of dissipation in the context of system-reservoir model, where the reservoir in question is kept in a nonequilibrium condition. Based on a systematic s…