非微扰规整理论中的有效势

IF 1.8 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

International Journal of Modern Physics D Pub Date : 2024-02-21 DOI:10.1142/s0218271823501110

Gianluca Calcagni, Marco Frasca, Anish Ghoshal

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引用次数: 0

摘要

我们考虑用一种形式主义来描述非微扰状态下规理论中标量场的假真空衰变。我们发现，相对于标量的自耦合而言，量规耦合越大，不稳定真空的局部最小值就越浅，甚至消失。这为获得早期宇宙学的一致图景提供了可能：在高温下，假真空衰变受到强烈青睐，宇宙自然会向稳定状态演化。

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Effective potential in non-perturbative gauge theories

We consider a formalism to describe the false-vacuum decay of a scalar field in gauge theories in non-perturbative regimes. We find that the larger the gauge coupling with respect to the self-coupling of the scalar, the shallower the local minimum of the unstable vacuum, to the point where it disappears. This offers the possibility to obtain a consistent picture of early universe cosmology: at high temperatures, a false-vacuum decay is strongly favored and the universe naturally evolves towards a stable state.

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来源期刊

International Journal of Modern Physics D 地学天文-天文与天体物理

CiteScore

3.80

自引率

9.10%

发文量

181

审稿时长

4-8 weeks

期刊介绍： Gravitation, astrophysics and cosmology are exciting and rapidly advancing fields of research. This journal aims to accommodate and promote this expansion of information and ideas and it features research papers and reviews on theoretical, observational and experimental findings in these fields. Among the topics covered are general relativity, quantum gravity, gravitational experiments, quantum cosmology, observational cosmology, particle cosmology, large scale structure, high energy astrophysics, compact objects, cosmic particles and radiation.