Resumo

KLIMOV, A. B.  e  CHUMAKOV, S. M.. On the SU(2) Wigner function dynamics. Rev. mex. fis. [online]. 2002, vol.48, n.4, pp.317-324. ISSN 0035-001X.

We study the quantum dynamics of the SU (2) quasiprobability distribution ("Wigner function") for the simple nonlinear Hamiltonian (finite analog of the Kerr medium, H = S²_z). The quasiclassical approximation for the Wigner function and the corresponding evolution of mean values are considered and compared with the exact and classical solutions.

Palavras-chave : Wigner function; quasiclassical approximation.

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