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arXiv 0901.1045hep-ph
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有限温度和化学势下的实时传播子

Real-time propagators at finite temperature and chemical potential

S. Mallik, Sourav Sarkar

摘要:

在有限温度和化学势下,我们推导了实时场论中所有玻色子和费米子传播子的谱表示形式。除了在玻色子和费米子类型之间简单和对称之外,这些表示只明确地依赖于解析函数。这最后一个属性允许一个简单的评价循环积分的能量变量在传播在这种形式下,即使在存在的化学势,这是不可能的,在其传统的形式。

英文摘要:

We derive a form of spectral representations for all bosonic and fermionic propagators in the real-time formulation of field theory at finite temperature and chemical potential. Besides being simple and symmetrical between the bosonic and the fermionic types, these representations depend explicitly on analytic functions only. This last property allows a simple evaluation of loop integrals in the energy variables over propagators in this form, even in presence of chemical potentials, which is not possible over their conventional form.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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