"quantum dissipation" . . "Caldeira-Leggett model" . "Quantum dissipation" . "system-harmonic bath model" . . "Caldeira\u2013Leggett model" . . . . "DLD model" . "energy relaxation" . . . . "quantum dissipative systems" . . "Quantum dissipation" . . "Spin-Boson model" .