Temporal evolution of a driven optomechanical system in the strong coupling regime
arXiv:2309.16087 · doi:10.1088/1402-4896/ad15cf
Abstract
We obtain a time-evolution operator for a forced optomechanical quantum system using Lie algebraic methods when the normalized coupling between the electromagnetic field and a mechanical oscillator, , is not negligible compared to one. Due to the forcing term, the interaction picture Hamiltonian contains the number operator in the exponents, and in order to deal with it, we approximate these exponentials by their average values taken between initial coherent states. Our approximation is justified when we compare our results with the numerical solution of the number of photons, phonons, Mandel parameter, and the Wigner function, showing an excellent agreement.
arXiv comment25 pages, 11 figures. Peer-reviewed version
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