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arXiv 1802.09644hep-lathep-ph
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SU(4)多费米子表象规范理论的相变温度相结构

Finite-temperature phase structure of SU(4) gauge theory with multiple fermion representations

Venkitesh Ayyar, Thomas DeGrand, Daniel C. Hackett, William I. Jay, Ethan T. Neil, Yigal Shamir, Benjamin Svetitsky

摘要:

研究了在基本表象中规范场同时与两种费米子耦合和在双指数反对称表象中与两种费米子耦合的SU(4)规范理论的相结构.我们发现,该理论只有两个阶段,低温阶段与两种费米子限制和手性破碎,和高温阶段与两种费米子取消限制和手性恢复。在理论上的单一相变似乎是一级的,与理论预测一致。

英文摘要:

We investigate the phase structure of SU(4) gauge theory with the gauge field simultaneously coupled to two flavors of fermion in the fundamental representation and two flavors of fermion in the two-index antisymmetric representation. We find that the theory has only two phases, a low-temperature phase with both species of fermion confined and chirally broken, and a high-temperature phase with both species of fermion deconfined and chirally restored. The single phase transition in the theory appears to be first order, in agreement with theoretical predictions.

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