On the SU(2) Wigner function dynamics

A. B, S. M


We study the quantum dynamics of the $SU(2)$ quasiprobability distribution (``Wigner function'') for the simple nonlinear Hamiltonian (finite analog of the Kerr medium, $H=S_{z}^{2}$). The quasiclassical approximation for the Wigner function and the corresponding evolution of mean values are considered and compared with the exact and classical solutions.\newline


Wigner function; quasiclassical approximation

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Revista Mexicana de Física

On line ISSN: 2683-2224

Bimonthly publication of Sociedad Mexicana de Física, A.C.
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