Quantum-classical correspondence and nonclassical states generation in dissipative quantum optical systems

Physics – Condensed Matter – Statistical Mechanics

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8 pages, RevTEX, no figures. Further development of the work quant-ph/9812019 ; consideration of system with limit cycle -- se

Scientific paper

10.1134/1.559142

We develop a semiclassical method for the determination of the nonlinear dynamics of dissipative quantum optical systems in the limit of large number of photons N, based on the 1/N-expansion and the quantum-classical correspondence. The method has been used to tackle two problems: to study the dynamics of nonclassical state generation in higher-order anharmonic dissipative oscillators and to establish the difference between the quantum and classical dynamics of the second-harmonic generation in a self-pulsing regime. In addressing the first problem, we have obtained an explicit time dependence of the squeezing and the Fano factor for an arbitrary degree of anharmonism in the short-time approximation. For the second problem, we have established analytically a characteristic time scale when the quantum dynamics differs insignificantly from the classical one.

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