Moyal and tomographic probability representations for f-oscillator quantum states

Details Moyal and tomographic probability representations for f-oscillator quantum states Moyal and tomographic probability representations for f-oscillator quantum states

2009-12-17

arxiv.org/abs/0912.3424v1

Physics

Quantum Physics

19 pages, submitted to Physica Scripta

Scientific paper

States of nonlinear quantum oscillators (f-oscillators) are considered in the Weyl-Wigner-Moyal representation and the tomographic probability representation, where the states are described by standard probability distributions instead of wave functions or density matrices. The evolving integrals of motion for classical and quantum f-oscillators are found and the solution for the Liouville equation associated with the probability distribution on the phase space for this oscillator is obtained along with the solution of Moyal equation for quantum f-oscillator, which provide the solutions for partial case of f-nonlinearity existing in Kerr media. Nonlinear coherent states and the thermodynamics of nonlinear oscillators are studied.

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