Perfect and Imperfect Gauge Fixing

J.Math.Phys.48:082303,2007 Gauge fixing may be done in different ways. We show that using the chain structure to describe a constrained system, enables us to use either a perfect gauge, in which all gauged degrees of freedom are determined; or an imperfect gauge, in which some first class constraint...

Full description

Saved in:
Bibliographic Details
Main Author Shirzad, A
Format Journal Article
LanguageEnglish
Published 21.09.2006
Subjects
Physics - High Energy Physics - Theory
Online AccessGet full text

Cover

More Information
Summary:J.Math.Phys.48:082303,2007 Gauge fixing may be done in different ways. We show that using the chain structure to describe a constrained system, enables us to use either a perfect gauge, in which all gauged degrees of freedom are determined; or an imperfect gauge, in which some first class constraints remain as subsidiary conditions to be imposed on the solutions of the equations of motion. We also show that the number of constants of motion depends on the level in a constraint chain in which the gauge fixing condition is imposed. The relativistic point particle, electromagnetism and the Polyakov string are discussed as examples and perfect or imperfect gauges are distinguished.
DOI:10.48550/arxiv.hep-th/0609145