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arXiv 1902.01093hep-th
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全息SYM理论中的色超导性

Color Superconductivity in Holographic SYM Theory

Kazuo Ghoroku, Kouji Kashiwa, Yoshimasa Nakano, Motoi Tachibana, Fumihiko Toyoda

摘要:

本文应用研究超导体系的全息自底向上模型,寻找超对称Yang-Mills理论的彩色超导相。我们应用探针分析这个模型的超对称杨米尔斯理论在限制和解除限制阶段。在这个分析中,我们发现当重子化学势超过某个临界值时,两个相中都出现了色超导。这一结果意味着,在临界化学势以上,一个色非单重双夸克算符,即库珀对,即使在禁闭阶段也有它的真空期望值。为了改善这种特殊的情况,我们进行分析,考虑到充分的反反应,从探针。因此,在探测近似中观察到的彩色超导相,在理论参数被设置在其合理的值内时,在限制和解除限制阶段都消失了。

英文摘要:

A holographic bottom-up model used in studying the superconducting system is applied to search for the color superconducting phase of supersymmetric Yang-Mills theory. We apply the probe analysis of this model to the supersymmetric Yang-Mills theory in both the confinement and deconfinement phases. In this analysis, we find the color superconductivity in both phases when the baryon chemical potential exceeds a certain critical value. This result implies that, above the critical chemical potential, a color non-singlet diquark operator, namely the Cooper pair, has its vacuum expectation value even in the confinement phase. In order to improve this peculiar situation, we proceed the analysis by taking account of the full back-reaction from the probe. As a result, the color superconducting phase, which is observed in the probe approximation, disappears in both the confinement and deconfinement phases when parameters of the theory are set within their reasonable values.

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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