Gluon propagators and center vortices in gluon plasma
Gluon propagators and center vortices in gluon plasma
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DOI：
10.1103/physrevd.83.114501
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发表时间：
2011-06-01
影响因子：
5
通讯作者：
Zakharov, V. I.
中科院分区：
文献类型：
--
作者：
Chernodub, M. N.;Nakagawa, Y.;Zakharov, V. I.
利用SU(2)晶格理论的猝灭模拟，研究了夸克-胶子等离子体中胶子传播子的电磁分量。在朗道规范中，由于中心涡旋的去除，传播子的磁分量在红外区受到强烈的影响，而电子分量几乎不受此影响。在库仑规范中，时间-时间相关器，包括瞬时相互作用，也有来自中心涡旋的重要贡献。结果发现，在退禁闭阶段，红外区的磁自由度与中心涡旋有很强的耦合。
We study electric and magnetic components of the gluon propagators in quark-gluon plasma in terms of center vortices by using a quenched simulation of SU(2) lattice theory. In the Landau gauge, the magnetic components of the propagators are strongly affected in the infrared region by removal of the center vortices, while the electric components are almost unchanged by this procedure. In the Coulomb gauge, the time-time correlators, including an instantaneous interaction, also have an essential contribution from the center vortices. As a result, one finds that magnetic degrees of freedom in the infrared region couple strongly to the center vortices in the deconfinement phase.