Deconfinement transition in three-dimensional compact U(1) gauge theories coupled to matter fields.
Deconfinement transition in three-dimensional compact U(1) gauge theories coupled to matter fields.
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三维紧凑 U(1) 规范理论与物质场耦合的解约束转变。
DOI：
10.1103/physrevlett.88.232001
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发表时间：
2002
影响因子：
8.6
通讯作者：
A. Sudbø
中科院分区：
文献类型：
--
作者：
H. Kleinert;F. Nogueira;A. Sudbø
结果表明，三维紧致U（1）规范理论中的永久禁闭在退禁闭跃迁中可以被物质场破坏。这是由于物质引起的非平凡红外不动点，以及规范场的反常标度维数。这导致了规范场的缺陷之间的对数相互作用，形成了磁单极子的气体。对于对数相互作用，原始电荷是无约束的。在没有物质场的情况下是永久性的受限相在临界电荷处达到，其中磁荷之间的相互作用在Kosterlitz无约束相变中被成对解约束屏蔽。
It is shown that permanent confinement in three-dimensional compact U(1) gauge theory can be destroyed by matter fields in a deconfinement transition. This follows from a nontrivial infrared fixed point caused by matter, and an anomalous scaling dimension of the gauge field. This leads to a logarithmic interaction between the defects of the gauge fields, which form a gas of magnetic monopoles. For logarithmic interactions, the original electric charges are unconfined. The confined phase, which is permanent in the absence of matter fields, is reached at a critical electric charge, where the interaction between magnetic charges is screened by a pair-unbinding in a Kosterlitz-Thouless-like phase transition.