Another proof of GellMann and Low's theorem
Abstract
The theorem by GellMann and Low is a cornerstone in quantum field theory and zerotemperature manybody theory. The standard proof is based on Dyson's timeordered expansion of the propagator; a proof based on exact identities for the time propagator is here given.
 Authors:
 Dipartimento di Fisica, Universita degli Studi di Milano, INFN, Sezione di Milano, Via Celoria 16, 20133 Milan (Italy) and European Theoretical Spectroscopy Facility (ETSF), 20133 Milan (Italy)
 Publication Date:
 OSTI Identifier:
 20929705
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Journal of Mathematical Physics; Journal Volume: 48; Journal Issue: 5; Other Information: DOI: 10.1063/1.2740469; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOUND STATE; MANYBODY PROBLEM; PROPAGATOR; QUANTUM FIELD THEORY; QUANTUM MECHANICS
Citation Formats
Molinari, Luca Guido. Another proof of GellMann and Low's theorem. United States: N. p., 2007.
Web. doi:10.1063/1.2740469.
Molinari, Luca Guido. Another proof of GellMann and Low's theorem. United States. doi:10.1063/1.2740469.
Molinari, Luca Guido. Tue .
"Another proof of GellMann and Low's theorem". United States.
doi:10.1063/1.2740469.
@article{osti_20929705,
title = {Another proof of GellMann and Low's theorem},
author = {Molinari, Luca Guido},
abstractNote = {The theorem by GellMann and Low is a cornerstone in quantum field theory and zerotemperature manybody theory. The standard proof is based on Dyson's timeordered expansion of the propagator; a proof based on exact identities for the time propagator is here given.},
doi = {10.1063/1.2740469},
journal = {Journal of Mathematical Physics},
number = 5,
volume = 48,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}
DOI: 10.1063/1.2740469
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