Feintzeig, Benjamin and Librande, Jonah and Soiffer, Rory (2021) Localizable Particles in the Classical Limit of Quantum Field Theory. Foundations of Physics.

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Abstract

A number of arguments purport to show that quantum fi�eld theory cannot be given an interpretation in terms of localizable particles. We show, in light of such arguments, that the classical \hbar\to 0 limit can aid our understanding of the particle content of quantum �eld theories. In particular, we demonstrate that for the massive Klein-Gordon �field, the classical limits of number operators can be
understood to encode local information about particles in the corresponding classical �eld theory.

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Item Type:	Published Article or Volume
Creators:	Creators Email ORCID Feintzeig, Benjamin bfeintze@uw.edu Librande, Jonah Soiffer, Rory
Keywords:	quantum field theory, particle interpretation, classical limit, deformation quantization
Subjects:	Specific Sciences > Physics > Fields and Particles Specific Sciences > Physics > Quantum Field Theory
Depositing User:	Benjamin Feintzeig
Date Deposited:	14 Apr 2021 02:38
Last Modified:	14 Apr 2021 02:38
Item ID:	18909
Journal or Publication Title:	Foundations of Physics
DOI or Unique Handle:	https://doi.org/10.1007/s10701-021-00458-5
Subjects:	Specific Sciences > Physics > Fields and Particles Specific Sciences > Physics > Quantum Field Theory
Date:	2021
URI:	https://philsci-archive.pitt.edu/id/eprint/18909

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