Physics – Mathematical Physics
Scientific paper
2008-01-29
J. Phys. A: Math. Theor. 41 235301 (2008)
Physics
Mathematical Physics
20 pages, 2 EPS figures, published in Journal of Physics A
Scientific paper
10.1088/1751-8113/41/23/235301
In the beginning of the 1950's, Wigner introduced a fundamental deformation from the canonical quantum mechanical harmonic oscillator, which is nowadays sometimes called a Wigner quantum oscillator or a parabose oscillator. Also, in quantum mechanics the so-called Wigner distribution is considered to be the closest quantum analogue of the classical probability distribution over the phase space. In this article, we consider which definition for such distribution function could be used in the case of non-canonical quantum mechanics. We then explicitly compute two different expressions for this distribution function for the case of the parabose oscillator. Both expressions turn out to be multiple sums involving (generalized) Laguerre polynomials. Plots then show that the Wigner distribution function for the ground state of the parabose oscillator is similar in behaviour to the Wigner distribution function of the first excited state of the canonical quantum oscillator.
der Jeugt Joris Van
Jafarov Elchin I.
Lievens S.
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