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Light-cone SU(2) Yang-Mills theory and conformal mechanics

2002/10/03 by V. P. Gerdt, Gerdt, V. P., A. M. Khvedelidze +3
Mathematics · Physics and Astronomy · #Exactly Solvable and Integrable Systems (nlin.SI) #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Mathematical Physics (math-ph) #hep-th #math-ph #math.MP #nlin.SI

paper · pdf · doi:10.48550/arxiv.hep-th/0210022

23 pages, LaTeX, no figures. V2: Presentation simplified and clarified, minor improvements in the whole text, typos corrected, references added. V3: Very small changes. V4: Changes in the text, Appendix added, references added

arxiv created 2005/12/02 · arxiv updated 2009/11/30

Abstract

We examine the mechanical matrix model that can be derived from the SU(2) Yang-Mills light-cone field theory by restricting the gauge fields to depend on the light-cone time alone. We use Dirac's generalized Hamiltonian approach. In contrast to its well-known instant-time counterpart the light-cone version of SU(2) Yang-Mills mechanics has in addition to the constraints, generating the SU(2) gauge transformations, the new first and second class constraints also. On account of all of these constraints a complete reduction in number of the degrees of freedom is performed. It is argued that the classical evolution of the unconstrained degrees of freedom is equivalent to a free one-dimensional particle dynamics. Considering the complex solutions to the second class constraints we show at this time that the unconstrained Hamiltonian system represents the well-known model of conformal mechanics with a ``strength'' of the inverse square interaction determined by the value of the gauge field spin.

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