NONTRIVIAL FOCK VACUUM OF THE LIGHT-FRONT SCHWINGER MODEL

Authors
MARTINOVIC L
Citation
L. Martinovic, NONTRIVIAL FOCK VACUUM OF THE LIGHT-FRONT SCHWINGER MODEL, Physics letters. Section B, 400(3-4), 1997, pp. 335-340
Citations number
42
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
400
Issue
3-4
Year of publication
1997
Pages
335 - 340
Database
ISI
SICI code
0370-2693(1997)400:3-4<335:NFVOTL>2.0.ZU;2-4
Abstract
A Fock representation for the physical vacuum based on the dynamical z ero mode of the gauge field is suggested for the Schwinger model quant ized on the light front. The theta-vacuum in terms of a gauge invarian t superposition of zero-mode coherent states is shown to reproduce the vacuum-angle dependence of the fermion condensate within the bosonize d formulation of the model. (C) 1997 Elsevier Science B.V.