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arXiv 1609.09249hep-phgr-qchep-th
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镜像QCD与宇宙学常数

Mirror QCD and Cosmological Constant

Roman Pasechnik, George Prokhorov, Oleg Teryaev

摘要:

镜像QCD(mQCD)是量子色动力学(QCD)的一个类似物,它对宇宙学常数的贡献与非微扰QCD中的基态相似,可以影响宇宙学演化。在这项工作中,我们探索了通常QCD和mQCD之间痕迹异常抵消的合理假设。这种两种规范理论之间的反常抵消,如果存在于自然界中,将导致它们对宇宙学常数的贡献被抑制甚至消除。本文通过对Einstein-Yang-Mills运动方程部分非微扰解的分析,提出了红外极限下非微扰mQCD耦合常数的形式和迹反常补偿条件。

英文摘要:

An analog of Quantum Chromo Dynamics (QCD) sector known as mirror QCD (mQCD) can affect the cosmological evolution due to a non-trivial contribution to the Cosmological Constant analogous to that induced by the ground state in non-perturbative QCD. In this work, we explore a plausible hypothesis for trace anomalies cancellation between the usual QCD and mQCD. Such an anomaly cancellation between the two gauge theories, if exists in Nature, would lead to a suppression or even elimination of their contributions to the Cosmological Constant. The trace anomaly compensation condition and the form of the non-perturbative mQCD coupling constant in the infrared limit have been proposed by analysing a partial non-perturbative solution of the Einstein--Yang-Mills equations of motion.

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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