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A Sphaleron in the (2 + 1)-Dimensional Modified σ-Model

✍ Scribed by A.V. Shurgaia; H.J.W. Mullerkirsten; D.H. Tchrakian

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
445 KB
Volume
228
Category
Article
ISSN
0003-4916

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✦ Synopsis

The Skyrme model in (2+1) dimensions, expressed as an (O(4) \sigma)-model, is augmented by the addition of a symmetry-breaking potential and has both instanton and sphaleron solutions. In order to obtain an explicit sphaleron configuration, the quadratic kinetic term is dropped and the stability problem is studied. With some approximations the existence of a negative eigenvalue can be demonstrated. I 1993 Academic Press, Inc.

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