11–14 Nov 2013
Hungarian Academy of Sciences
Europe/Budapest timezone

Wigner function and probability representation of quantum states

12 Nov 2013, 09:45
25m
Reading Room (Felolvasó terem) (Hungarian Academy of Sciences)

Reading Room (Felolvasó terem)

Hungarian Academy of Sciences

Speaker

Prof. Vladimir Man'ko

Description

The relation of Wigner function with fair probability distribution called tomographic distribution or quantum tomogram associated with the quantum state is reviewed. The connection of the tomographic picture of quantum mechanics with the integral Radon transform of the Wigner quasidistribution is discussed. The Wigner-Moyal equation for the Wigner function is presented in the form of kinetic equation for the tomographic probability distribution both in quantum mechanics and in the classical limit of Liouville equation. The calculation of moments of physical observables in terms of integrals with the state tomographic probability disatributions is constructed having a standard form of averaging in the probability theory. New uncertainty relations for the position and momentum are written in terms of optical tomograms suitable for direct experimental check. Some recent experimnts on checking the uncertainty relations including entropic ones are discussed.

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