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arXiv 1009.5682hep-ph
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边界有效理论框架下无质量热标量理论的压力

Pressure of massless hot scalar theory in the boundary effective theory framework

A. Bessa, F. T. Brandt, C. A. A. de Carvalho, E. S. Fraga

摘要:

本文将边界有效理论(BET)方法应用于热场论,计算了具有四次相互作用的无质量标量场系统的压强。该方法自然地分离了红外物理,并且本质上是非微扰的。对于最低阶,主要成分是具有非平凡(时间)边界条件的自由Euler-Lagrange方程的解。我们得到一个示意图的压力,这是在很好的协议与最近的计算发现在文献中,以下一个非常直接和紧凑的程序。

英文摘要:

We use the boundary effective theory (BET) approach to thermal field theory in order to calculate the pressure of a system of massless scalar fields with quartic interaction. The method naturally separates the infrared physics, and is essentially non-perturbative. To lowest order, the main ingredient is the solution of the free Euler-Lagrange equation with non-trivial (time) boundary conditions. We derive a resummed pressure, which is in good agreement with recent calculations found in the literature, following a very direct and compact procedure.

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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