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arXiv 1706.05977hep-thhep-ph
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反相磁催化反应的通用序参量

A universal order parameter for Inverse Magnetic Catalysis

Alfonso Ballon-Bayona, Matthias Ihl, Jonathan P. Shock, Dimitrios Zoakos

摘要:

我们重新审视了有限密度Sakai-Sugimoto模型中的手性跃迁,发现在固定温度下,临界线$μ_c(B)$附近的磁化强度作为序参量来区分逆磁催化和磁催化。此外,我们提出了一个普遍的$μ_c (B)$和磁化强度之间的关系,使我们能够预测前者的行为从后者的行为。我们发现,一个类似的关系成立,在固定的化学势$μ$,为临界线$T_c(B)$。我们的结果是通过调查一个完全的数值解有关方程。在低温下,我们的结果减少到Preis,Rebhan和Schmitt [JHEP 1103(2011)033]基于半解析近似获得的结果。

英文摘要:

We revisit the chiral transition in the finite density Sakai-Sugimoto model and find that, at fixed temperature $T$, the magnetisation near the critical line $μ_c(B)$ acts as an order parameter to distinguish Inverse Magnetic Catalysis from Magnetic Catalysis. Moreover, we propose a universal relation between $μ_c (B)$ and the magnetisation that allows us to predict the behaviour of the former from the behaviour of the latter. We find that a similar relation holds, at fixed chemical potential $μ$, for the critical line $T_c(B)$. Our results are obtained by investigating a fully numerical solution to the relevant equations. At low temperatures our results reduce to those obtained by Preis, Rebhan and Schmitt [JHEP 1103 (2011) 033], based on a semi-analytic approximation.

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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