arXiv:quant-ph/9905021AbstractReferencesReviewsResources
Gauge invariance and the vacuum state
Published 1999-05-07Version 1
Quantum field theory is assumed to be gauge invariant. It is shown that for a Dirac field the assumption of gauge invariance impacts on the way the vacuum state is defined. It is shown that the conventional definition of the vacuum state must be modified to take into account the requirements of gauge invariance.
Comments: 32 pages
Journal: Can.J.Phys. 76 (1998) 111-127
DOI: 10.1139/cjp-76-2-111
Categories: quant-ph
Keywords: vacuum state, quantum field theory, gauge invariance impacts, gauge invariant, conventional definition
Tags: journal article
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