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06 July 2020
 
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Relativistic Wigner Function, Charge Variable and Structure of Position Operator
B.I. Lev ; A.A. Semenov ; C.V. Usenko ;
Date 20 Dec 2001
Subject quant-ph
AbstractThe relativistic phase-space representation by means of the usual position and momentum operators for a class of observables with Weyl symbols independent of charge variable (i.e. with any combination of position and momentum) is proposed. The dynamical equation coincides with its analogue in the non-local theory (generalization of the Newton-Wigner position operator approach) under conditions when particles creation is impossible. Differences reveal themselves in specific constraints on possible initial conditions.
Source arXiv, quant-ph/0112122
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