用流方程求解t-J模型的元激发能谱

Flow equations for solving elementary excitation energy spectrum of the t-J model

t -J模型是研究电子强关联作用和高Tc超导理论的重要模型之一。本文首次将重整化群方法应用于t-J模型 ,由流方程求解出t-J模型的元激发能谱 。

The t-J model is one of the most important models that is often used to study the theory of the effect of strong electron correlations and high-Tc superconductivity. In this article, the method of renormalization group is firstly used to investigate the t-J model and the elementary excitation energy spectrum of t-J model is obtained by the flow equations. The result is compared with the result of Green's function method.