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arXiv 0707.1869hep-lat
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有限温度下SU(3)和SU(4)的新相

New Phases of SU(3) and SU(4) at Finite Temperature

Joyce C. Myers, Michael C. Ogilvie

摘要:

在有限温度下纯规范理论的作用量中加入一个伴随的Polyakov圈项,导致了SU(N)规范理论的新相。对于SU(3),发现了一个新的相,它以一种新的方式破坏了Z(3)对称性;对于SU(4),新的相表现出Z(4)到Z(2)的自发对称性破缺,代表了一个部分受限的相,其中夸克被限制,而双夸克没有。的整体相结构和热力学是一致的理论模型的有效潜力的Polyakov环微扰理论的基础上。

英文摘要:

The addition of an adjoint Polyakov loop term to the action of a pure gauge theory at finite temperature leads to new phases of SU(N) gauge theories. For SU(3), a new phase is found which breaks Z(3) symmetry in a novel way; for SU(4), the new phase exhibits spontaneous symmetry breaking of Z(4) to Z(2), representing a partially confined phase in which quarks are confined, but diquarks are not. The overall phase structure and thermodynamics is consistent with a theoretical model of the effective potential for the Polyakov loop based on perturbation theory.

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