A use of the central limit theorem to obtain a classical limit for the center-of-mass tomogram

Abstract

We investigate the dependence of the center-of-mass tomogram of a system with many degrees of freedom $N$ on the Planck constant $\hslash$. It is shown that to use the central limit theorem under taking the limit $N\to +\infty$ one should keep the energy of the system to be constant. In the case, the resulting distribution is Gaussian if the initial distribution is a product of independent excited states of a quantum oscillator or even and odd coherent states either. Then, if one turns the Planck constant $\hslash \to 0$ we get $\delta$-function associated with the distribution concentrated in zero with the probability equal to one.

7 pages