A driven damped harmonic oscillator in the ket-vector representation of the density operator
By virtue of the entangled-state basis and the ket-vector representation of the density operator, we solve the master equation of a driven damped harmonic oscillator. In this representation, the density operators are mapped to vectors of a two-mode Fock space whose first mode is the system mode and the second mode is a fictitious one. We derive the Glauber–Sudarshan P function of the quantum state.
Keywordsentangled-state basis ket-vector representation master equation phase-space representation
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- 7.W. H. Louisell, Quantum Statistical Properties of Radiation, Wiley, New York (1973).Google Scholar