图示理论中的保守性、交叉对称性与完备性
Conservation, crossing symmetry, and completeness in diagrammatic theories
AI总结:
本文利用Kraichnan嵌入哈密顿量形式法研究强相关系统中纯对偶介质相关性和对偶不可约相关性的相互作用一致性,揭示了交叉对称性与保守性之间的关系。
摘要:
相互作用粒子集合的图示分析在两种主要实现之间存在根本性的不匹配:Phi可导(保守)近似和parquet(交叉对称)模型。除了精确理论本身之外,没有项级展开可以同时保持保守性和交叉对称性。本文应用Kraichnan嵌入哈密顿量形式法研究强相关系统中纯对偶介质相关性和对偶不可约相关性的相互作用一致性。该方法对交叉对称性与保守性问题提供了新的视角。在此过程中,parquet方程获得了不同的表述。
英文摘要:
The diagrammatic analysis of interacting particle assemblies harbors a fundamental mismatch between two of its main implementations: Phi-derivable (conserving) approximations and parquet (crossing symmetric) models. No termwise expansion, short of the exact theory itself, can be both conserving and crossing symmetric. This work applies the Kraichnan embedded-Hamiltonian formalism for strongly coupled systems to investigate consistency of the interplay between purely pair-mediated correlations and pair-irreducible ones. The approach sheds a different light on the issue of crossing symmetry versus conservation. In the process, the parquet equations acquire a different formulation.
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。