论文标题
XYZ模型中的当前平均值
Current mean values in the XYZ model
论文作者
论文摘要
XYZ模型是一个可集成的自旋链，具有无限的保守费用，但缺少全局$ u（1）$ - 对称性。我们考虑当前的操作员，该操作员描述了该模型中保守数量的流动。我们得出当前平均值的确切结果，对具有周期性边界条件的有限体积中的任何特征态有效。该结果可以作为研究该模型在广义流体动力学中的运输特性的基础。
The XYZ model is an integrable spin chain which has an infinite set of conserved charges, but it lacks a global $U(1)$-symmetry. We consider the current operators, which describe the flow of the conserved quantities in this model. We derive an exact result for the current mean values, valid for any eigenstate in a finite volume with periodic boundary conditions. This result can serve as a basis for studying the transport properties of this model within Generalized Hydrodynamics.
