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arXiv 1605.09482hep-thcond-mat.stat-mechcond-mat.str-el
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三维量子电动力学中作为不动点湮没的手征对称性破缺

Chiral symmetry breaking in three-dimensional quantum electrodynamics as fixed point annihilation

Igor F. Herbut

摘要:

三维量子电动力学中的手征对称性自发破缺($d=3$)被理解为描述大N共形相位的红外稳定不动点被另一个在临界费米子数$N=N_c$处的不稳定不动点湮灭。我们讨论了$N_c$在这幅图中普适性的根源,以及在$(d,N)$平面上相界的一些特征。特别是,它表明,作为$d\rightarrow 4$,$N_c\rightarrow 0$具有恒定的斜率,我们的最佳估计,其中表明,$N_c = 2.89$在$d=3$。

英文摘要:

Spontaneous chiral symmetry breaking in three dimensional ($d=3$) quantum electrodynamics is understood as annihilation of an infrared-stable fixed point that describes the large-N conformal phase by another unstable fixed point at a critical number of fermions $N=N_c$. We discuss the root of universality of $N_c$ in this picture, together with some features of the phase boundary in the $(d,N)$ plane. In particular, it is shown that as $d\rightarrow 4$, $N_c\rightarrow 0$ with a constant slope, our best estimate of which suggests that $N_c = 2.89$ in $d=3$.

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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