Non-perturbative VEVs from a Local Expansion
| dc.creator | Jaramillo, A. | |
| dc.creator | Mansfield, P. | |
| dc.date | 1998-07-03 | |
| dc.date.accessioned | 2026-07-07T04:24:45Z | |
| dc.date.available | 2026-07-07T04:24:45Z | |
| dc.description | We propose a method for the calculation of vacuum expectation values (VEVs) given a non-trivial, long-distance vacuum wave functional (VWF) of the kind that arises, for example, in variational calculations. The VEV is written in terms of a Schrödinger-picture path integral, then a local expansion for (the logarithm of the) VWF is used. The integral is regulated with an explicit momentum cut-off, $Λ$. The resulting series is not expected to converge for $Λ$ larger than the mass-gap but studying the domain of analyticity of the VEVs allows us to use analytic continuation to estimate the large-$Λ$ limit. Scalar theory in 1+1 dimensions is analyzed, where (as in the case of Yang-Mills) we do not expect boundary divergences. | |
| dc.description | 6 pages, LaTeX and appb.sty, 2 figures (uses epsf); Talk given at the Workshop on 'The Structure of Mesons, Baryons and Nuclei', Cracow, May 1998, to be published in Acta Physica Polonica B | |
| dc.identifier | https://arxiv.org/abs/hep-th/9807032 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9807032 | |
| dc.identifier | Acta Phys.Polon. B29 (1998) 2487-2492 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/55533 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Non-perturbative VEVs from a Local Expansion | |
| dc.type | text |