Massive Integrable Soliton Theories

Details Massive Integrable Soliton Theories Massive Integrable Soliton Theories

1994-12-07

arxiv.org/abs/hep-th/9412062v1

Nucl.Phys. B445 (1995) 451-468

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, no figures, plain tex with macro included

Scientific paper

10.1016/0550-3213(95)00142-F

Massive integrable field theories in $1+1$ dimensions are defined at the Lagrangian level, whose classical equations of motion are related to the ``non-abelian'' Toda field equations. They can be thought of as generalizations of the sine-Gordon and complex sine-Gordon theories. The fields of the theories take values in a non-abelian Lie group and it is argued that the coupling constant is quantized, unlike the situation in the sine-Gordon theory, which is a special case since its field takes values in an abelian group. It is further shown that these theories correspond to perturbations of certain coset conformal field theories. The solitons in the theories will, in general, carry non-abelian charges.

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