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arXiv 2604.26795hep-thastro-ph.COgr-qchep-ph
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真空衰变的正定公式及其对称性降低

A positive definite formulation of vacuum decay with reduced symmetry

Instituto de Física Teórica IFT-UAM/CSIC(理论物理研究所 IFT-UAM/CSIC);Department of Physics, Graduate School of Science, Kobe University(神户大学理学研究科物理学系);Deutsches Elektronen-Synchrotron DESY(德国电子同步加速器 DESY);Department of Physics, Osaka Metropolitan University(大阪公立大学物理学系);Osaka Central Advanced Mathematical Institute (OCAMI), Osaka Metropolitan University(大阪公立大学大阪中央先进数学研究所 (OCAMI))

José R. Espinosa, Ryusuke Jinno, Thomas Konstandin, Shogo Matake, Taiga Miyachi

AI总结:

本文提出一种正定的真空衰变隧穿衰变作用量计算方法,适用于具有球对称性的杂质,其对称性从O(4)降低到O(3),并提供了O(3)对称性和任意墙厚的解析示例。

摘要:

欧几里得 bounce 在真空衰变中享有O(4)对称性,但在存在能催化衰变的杂质时会丧失。本文提出了一种计算隧穿衰变作用量的公式,该公式对杂质具有球对称性时显式正定,其对称性降低为O(3)。所构造的作用量可视为隧穿势方法的推广,后者隐式假设了O(4)对称性。我们证明该作用量在O(4)对称情况下的退化为隧穿势,并提供了具有O(3)对称性和任意墙厚的解析示例。

英文摘要:

The Euclidean bounce for vacuum decay enjoys an $O(4)$ symmetry that is lost in the presence of impurities than can catalyze the decay. We present a formulation for the calculation of the tunneling decay action, that is explicitly positive definite, for impurities whose effects are spherically symmetric so that the bounce symmetry is reduced to $O(3)$. The action constructed can be regarded as a generalization of the tunneling potential method, which implicitly assumed $O(4)$ symmetry. We show that the action obtained reduces to the tunneling potential for $O(4)$-symmetric cases and provide analytic examples with $O(3)$ symmetry and arbitrary wall thickness.

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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