Giulini, Domenico (2020) Classical perspectives on the Newton--Wigner position observable. [Preprint]

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Abstract

This paper deals with the Newton--Wigner position observable for Poincaré invariant \emph{classical}systems. We prove an existence and uniqueness theorem for elementary systems that parallels the well-known Newton--Wigner theorem in the quantum context. We also discuss and justify the geometric interpretation of the Newton--Wigner position as `centre of spin', already proposed by Fleming in 1965 again in the quantum context.

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Item Type:	Preprint
Creators:	Creators Email ORCID Giulini, Domenico giulini@itp.uni-hannover.de 0000-0003-3123-7257
Keywords:	Position observable, localization, Poincare invariance, elementary systems, Newton-Wigner position
Subjects:	Specific Sciences > Physics > Fields and Particles Specific Sciences > Physics > Relativity Theory Specific Sciences > Physics > Symmetries/Invariances
Depositing User:	Domenico Giulini
Date Deposited:	23 Apr 2020 18:40
Last Modified:	23 Apr 2020 18:40
Item ID:	17103
Subjects:	Specific Sciences > Physics > Fields and Particles Specific Sciences > Physics > Relativity Theory Specific Sciences > Physics > Symmetries/Invariances
Date:	22 April 2020
URI:	https://philsci-archive.pitt.edu/id/eprint/17103

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