Journal of Mathematical Physics

Position and Polarization Operators in Relativistic and Nonrelativistic Mechanics

H. Bacry

Published Jan 1, 1964• 32 citations

Abstract

The author shows how the position operator and the polarization operator are obtained in nonrelativistic quantum mechanics from their equivalents in relativistic quantum mechanics. This problem is investigated with the aid of group methods; it is furthermore shown that the two operators cannot be studied separately.

DOI: 10.1063/1.1704054

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