arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1002.2495hep-phhep-th
收藏

手征磁效应的实时动力学

Real-time dynamics of the Chiral Magnetic Effect

Kenji Fukushima, Dmitri E. Kharzeev, Harmen J. Warringa

摘要:

在量子色动力学中,具有非零拓扑荷的规范场组态会产生左手夸克和右手夸克的数量之差。当一个(电磁)磁场被加到这个配置,电磁电流沿磁场感应;这被称为手征磁效应。我们计算了具有拓扑荷的色通量管中的这种电流,并在垂直方向上施加磁场,我们认为这种情况在相对论重离子碰撞的早期阶段就已经实现。

英文摘要:

In quantum chromodynamics, a gauge field configuration with nonzero topological charge generates a difference between the number of left- and right-handed quarks. When a (electromagnetic) magnetic field is added to this configuration, an electromagnetic current is induced along the magnetic field; this is called the chiral magnetic effect. We compute this current in the presence of a color flux tube possessing topological charge, with a magnetic field applied perpendicular to it. We argue that this situation is realized at the early stage of relativistic heavy-ion collisions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑