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arXiv 2109.13784hep-thastro-ph.COgr-qchep-ph
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全息术中的有效作用和气泡成核

Effective actions and bubble nucleation from holography

Fëanor Reuben Ares, Oscar Henriksson, Mark Hindmarsh, Carlos Hoyos, Niko Jokela

摘要:

讨论了利用全息对偶计算强相互作用场论的量子有效作用量,并利用它来确定与引力波产生有关的一级相变的准平衡参数.一个特别简单的全息模型,只包含度规和一个自由的大质量标量场。尽管简单,该模型包含了丰富的相图,包括一级相变在非零温度,由于各种多轨迹变形。我们得到的领导项的有效作用,从均匀的黑膜解决方案的重力对偶,和线性扰动周围。然后利用有效作用量在场论方面构造了磁泡和畴壁解,并研究了它们的性质。特别地,我们展示了如何缩放的有效作用与有效自由度的量子场论决定相应的缩放的引力波参数。

英文摘要:

We discuss the computation of the quantum effective action of strongly interacting field theories using holographic duality, and its use to determine quasi-equilibrium parameters of first order phase transitions relevant for gravitational wave production. A particularly simple holographic model is introduced, containing only the metric and a free massive scalar field. Despite the simplicity, the model contains a rich phase diagram, including first order phase transitions at non-zero temperature, due to various multi-trace deformations. We obtain the leading terms in the effective action from homogeneous black brane solutions in the gravity dual, and linearised perturbations around them. We then employ the effective action to construct bubble and domain wall solutions in the field theory side and study their properties. In particular, we show how the scaling of the effective action with the effective number of degrees of freedom of the quantum field theory determines the corresponding scaling of gravitational wave parameters.

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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