arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1002.3143hep-phnucl-th
收藏

色电场中夸克对的产生及磁场的影响

Quark pair creation in color electric fields and effects of magnetic fields

Naoto Tanji

摘要:

研究了均匀经典SU(3)色电场与夸克量子场动态耦合系统的时间演化,着重研究了非微扰夸克对的产生及其反反应.我们用规范不变的方法刻画了电场的色方向,并研究了色方向的依赖性。产生的夸克的动量分布显示等离子体振荡以及量子效应,如泡利阻塞和干涉。系统的压力也计算,我们表明,对创建缓和的压力各向异性程度。此外,还讨论了在平行于电场的色磁场作用下,对产生的增强和手征电荷的感应。

英文摘要:

The time evolution of a system where a uniform and classical SU(3) color electric field and quantum fields of quarks are dynamically coupled with each other is studied focusing on non-perturbative pair creation and its back reaction. We characterize the color direction of the electric field in a gauge invariant way, and investigate its dependence. Momentum distributions of created quarks show plasma oscillation as well as quantum effects such as the Pauli blocking and interference. Pressure of the system is also calculated, and we show that pair creation moderates degree of anisotropy of pressure. Furthermore, enhancement of pair creation and induction of chiral charge under a color magnetic field which is parallel to the electric field are discussed.

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。

↑