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arXiv 0712.2377hep-thcond-mat.stat-mech
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多参数Phi^4量子场论的高阶微扰展开

High-order perturbative expansions of multi-parameter Phi^4 quantum field theories

Andrea Pelissetto, Ettore Vicari

摘要:

我们给出了具有N分量基本场的多参数Phi^4量子场论的高阶微扰展开式,它包含场的最多四阶多项式。多参数Phi^4理论推广了最简单的O(N)对称Phi^4理论,并描述了更复杂的对称性破缺模式。这些笔记收集了几个物理上有趣的多参数φ理论的高阶微扰级数,总共有五六个循环。我们考虑O(M)XO(N)对称的Phi^4模型,即所谓的MN模型,以及一个包含五个四次项的自旋密度波Phi^4模型。

英文摘要:

We present high-order pertubative expansions of multi-parameter Phi^4 quantum field theories with an N-component fundamental field, containing up to 4th-order polynomials of the field. Multi-parameter Phi^4 theories generalize the simplest O(N)-symmetric Phi^4 theories, and describe more complicated symmetry breaking patterns. These notes collect several high-order perturbative series of physically interesting multi-parameter Phi^4 theories, to five or six loops. We consider the O(M)XO(N)-symmetric Phi^4 model, the so-called MN model, and a spin-density-wave Phi^4 model containing five quartic terms.

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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