来自贝特-萨尔佩特谱方程的边界态

IF 5.3 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2024-05-17 DOI:10.1103/physrevd.109.096024

Gernot Eichmann, Andrés Gómez, Jan Horak, Jan M. Pawlowski, Jonas Wessely, Nicolas Wink

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引用次数: 0

摘要

我们计算了三维标量ϕ4理论在破碎相中的束缚态性质。为此，我们扩展了最近开发的戴森-施温格谱方程技术，以求解贝特-萨尔佩特方程并确定束缚态谱。我们对理论的两点、三点和四点函数采用了一致的截断，从而恢复了无限耦合极限下的缩放特性。我们在此极限下得出的最低束缚态质量与晶格测定结果非常吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Bound states from the spectral Bethe-Salpeter equation

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Bound states from the spectral Bethe-Salpeter equation

We compute the bound state properties of three-dimensional scalar

ϕ^{4}

theory in the broken phase. To this end, we extend the recently developed technique of spectral Dyson-Schwinger equations to solve the Bethe-Salpeter equation and determine the bound state spectrum. We employ consistent truncations for the two-, three- and four-point functions of the theory that recover the scaling properties in the infinite coupling limit. Our result for the mass of the lowest-lying bound state in this limit agrees very well with lattice determinations.

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.