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28 March 2024
 
  » arxiv » hep-th/9909033

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Quantisation without Gauge Fixing: Avoiding Gribov Ambiguities through the Physical Projector
Victor M. Villanueva ; Jan Govaerts ; Jose-Luis Lucio-Martinez ;
Date 7 Sep 1999
Journal J.Phys. A33 (2000) 4183-4202
Subject hep-th hep-ph quant-ph
AffiliationUniv. Michoacan, Mexico), Jan Govaerts (Catholic Univ. Louvain, Belgium) and Jose-Luis Lucio-Martinez (Univ. Guanajuato, Mexico
AbstractThe quantisation of gauge invariant systems usually proceeds through some gauge fixing procedure of one type or another. Typically for most cases, such gauge fixings are plagued by Gribov ambiguities, while it is only for an admissible gauge fixing that the correct dynamical description of the system is represented, especially with regards to non perturbative phenomena. However, any gauge fixing procedure whatsoever may be avoided altogether, by using rather a recently proposed new approach based on the projection operator onto physical gauge invariant states only, which is necessarily free on any such issues. These different aspects of gauge invariant systems are explicitely analysed within a solvable U(1) gauge invariant quantum mechanical model related to the dimensional reduction of Yang-Mills theory.
Source arXiv, hep-th/9909033
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