标题： 大质量可积孤子理论 显示英文标题

标题： Massive Integrable Soliton Theories

摘要： 在$1+1$维度中的大量可积场论是在拉格朗日水平上定义的，其经典运动方程与“非阿贝尔”托达场方程有关。 它们可以看作是正弦-戈登和复正弦-戈登理论的推广。 这些理论的场取值于一个非阿贝尔李群，并且认为耦合常数是量子化的，这与正弦-戈登理论的情况不同，因为后者是一个特例，其场取值于阿贝尔群。 进一步表明，这些理论对应于某些陪集共形场论的扰动。 这些理论中的孤子通常会携带非阿贝尔电荷。 显示英文摘要

摘要： 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.