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The elliptic scattering theory of the 1/2-XYZ and higher order deformed Virasoro algebras

机译:1 / 2-XYZ及更高阶变形Virasoro代数的椭圆散射理论

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Bound state excitations of the spin 1/2-XYZ model are considered inside the Bethe Ansatz framework by exploiting the equivalent Non-Linear Integral Equations. Of course, these bound states go to the sine-Gordon breathers in the suitable limit and therefore the scattering factors between them are explicitly computed by inspecting the corresponding Non-Linear Integral Equations. As a consequence, abstracting from the physical model the Zamolodchikov-Faddeev algebra of two n-th elliptic breathers defines a tower of n-order Deformed Virasoro Algebras, reproducing the n = 1 case the usual well-known algebra of Shiraishi-Kubo-Awata-Odake [1].
机译:通过利用等效的非线性积分方程,可以在Bethe Ansatz框架内考虑自旋1 / 2-XYZ模型的束缚态激发。当然,这些束缚态在适当的极限内进入正弦-戈登呼吸,因此,通过检查相应的非线性积分方程,可以明确计算它们之间的散射因子。结果,从物理模型中抽象出两个第n个椭圆形呼吸的Zamolodchikov-Faddeev代数,定义了一个n阶变形Virasoro代数的塔,重现了n = 1情况,是Shiraishi-Kubo-Awata的常见代数。 -奥达克[1]。

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