arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0907.4793hep-ph
收藏

Schwinger机制中的多粒子关联

Multiparticle correlations in the Schwinger mechanism

K. Fukushima, F. Gelis, T. Lappi

摘要:

讨论了标量QED中的Schwinger机制,并利用LSZ约化公式导出了在外加电场作用下产生的粒子的多重数分布。假设电场是空间均匀的,我们发现不同动量的粒子是独立产生的,并且在一个模式下的多重数分布服从玻色-爱因斯坦分布。我们确认我们的结果的一致性与直观的推导通过Bogoliubov变换的创建和湮灭运营商。最后,我们回顾了一个已知的可解的例子,随时间变化的电场,提出了精确和明确的表达式进行演示。

英文摘要:

We discuss the Schwinger mechanism in scalar QED and derive the multiplicity distribution of particles created under an external electric field using the LSZ reduction formula. Assuming that the electric field is spatially homogeneous, we find that the particles of different momenta are produced independently, and that the multiplicity distribution in one mode follows a Bose-Einstein distribution. We confirm the consistency of our results with an intuitive derivation by means of the Bogoliubov transformation on creation and annihilation operators. Finally we revisit a known solvable example of time-dependent electric fields to present exact and explicit expressions for demonstration.

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。

↑