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arXiv 0708.0928hep-th
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有限温度下质量Thirring模型的对偶玻色热格林函数和费米子关联函数

Dual Bosonic Thermal Green Function and Fermion Correlators of the Massive Thirring Model at a Finite Temperature

Leonardo Mondaini, E. C. Marino

摘要:

坐标空间中二维自由无质量标量场的欧几里得热格林函数被写为一个变量的复解析函数的实部,该复解析函数将$z=x+iτ$($τ$:虚时间)平面的无限条$-\infty<x<\infty$($0<τ<β$)共形映射到上半平面。利用这一事实和柯西-黎曼条件,我们确定的对偶热格林函数的虚部的功能。利用热格林函数及其对偶,得到了有限温度下有质量Thirring模型(MTM)的费米子关联函数的显式级数表达式。

英文摘要:

The Euclidian thermal Green function of the two-dimensional (2D) free massless scalar field in coordinate space is written as the real part of a complex analytic function of a variable that conformally maps the infinite strip $-\infty<x<\infty$ ($0<τ<β$) of the $z=x+iτ$ ($τ$: imaginary time) plane into the upper-half-plane. Using this fact and the Cauchy-Riemann conditions, we identify the dual thermal Green function as the imaginary part of that function. Using both the thermal Green function and its dual, we obtain an explicit series expression for the fermionic correlation functions of the massive Thirring model (MTM) at a finite temperature.

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