Dynamical restoration of Z_N symmetry in SU(N) + Higgs theories

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• 作者：Minati Biswal ^{mbiswal@imsc.res.in" class="auth_mail" title="E-mail the corresponding author} ; Sanatan Digal ; ^{digal@imsc.res.in" class="auth_mail" title="E-mail the corresponding author} ; P.S. Saumia ^{saumia@imsc.res.in" class="auth_mail" title="E-mail the corresponding author}
• 刊名：Nuclear Physics B
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：910
• 期：Complete
• 页码：30-39
• 全文大小：291 K

文摘

We study the Z_N$Z_N$ symmetry in SU(N)$SU(N)$ + Higgs theories with the Higgs field in the fundamental representation. The distributions of the Polyakov loop show that the Z_N$Z_N$ symmetry is explicitly broken in the Higgs phase. On the other hand inside the Higgs symmetric phase the Polyakov loop distributions and other physical observables exhibit the Z_N$Z_N$ symmetry. This effective realization of the Z_N$Z_N$ symmetry in the theory changes the nature of the confinement–deconfinement transition. We argue that the Z_N$Z_N$ symmetry will lead to time independent topological defect solutions in the Higgs symmetric deconfined phase which will play important role at high temperatures.