arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1807.01642hep-th
收藏

平方反比电场对真空稳定性的破坏

Violation of vacuum stability by inverse square electric fields

T. C. Adorno, S. P. Gavrilov, D. M. Gitman

摘要:

在强背景QED框架下,我们研究了含时平方反比电场的粒子产生(Schwinger效应)。为此,我们找到了相应的Dirac和Klein-Gordon方程的精确的内解和外解,计算了真空到真空的几率以及从真空产生的电子对的微分平均数和总平均数。对于随时间缓慢变化的电场,我们提出了详细的计算的Schwinger效应,并讨论可能的渐近制度。所得结果与局部恒定场近似下电场产生粒子效应的普遍估计一致。还详细讨论了非对称位形对应的微分量和总量。最后,采用平方反比电场模拟开关过程。然后,所考虑的情况下进行比较的指数电场被用来模拟开关过程。

英文摘要:

In the framework of QED with a strong background, we study particle creation (the Schwinger effect) by a time-dependent inverse square electric field. To this end corresponding exact in- and out-solutions of the Dirac and Klein-Gordon equations are found. We calculate the vacuum-to-vacuum probability and differential and total mean numbers of pairs created from the vacuum. For electric fields varying slowly in time, we present detailed calculations of the Schwinger effect and discuss possible asymptotic regimes. The obtained results are consistent with universal estimates of the particle creation effect by electric fields in the locally constant field approximation. Differential and total quantities corresponding to asymmetrical configurations are also discussed in detail. Finally, the inverse square electric field is used to imitate switching on and off processes. Then the case under consideration is compared with the one where an exponential electric field is used to imitate switching on and off processes.

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。

↑