Quark pair creation in color electric fields and effects of magnetic fields |
| |
Authors: | Noato Tanji |
| |
Institution: | Institute of Physics, University of Tokyo, Komaba, Tokyo 153-8902, Japan |
| |
Abstract: | The time evolution of a system where a uniform and classical SU(3) color electric field and quantum fields of quarks interact with each other is studied focusing on non-perturbative pair creation and its back reaction. We characterize a color direction of an 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 an electric field are discussed. |
| |
Keywords: | Schwinger mechanism Color flux tube Back reaction Magnetic field |
本文献已被 ScienceDirect 等数据库收录! |
|