Frequency-temperature relation for a quantum oscillator bound to a phonon thermostat

Frequency Shifts and Master Equations fo

Frequency Shifts and Master Equations for a Quantum Oscillator Coupled to a Reservoir

✍ G.W. Ford; R.F. O'Connell 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 128 KB

For a quantum oscillator coupled to a reservoir, master equations obtained under the assumptions of weak coupling and use of a rotating-wave Hamiltonian (RWA) are known to give incorrect frequency shifts. Here, we show that a calculation which does not invoke the RWA gives results for the frequency