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arXiv math-ph/0507027math-phhep-thmath.MP
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平面波和恒定磁场中Dirac粒子的路径积分方法

Dirac particle in the presence of plane wave and constant magnetic fields: Path integral approach

S. Bourouaine

摘要:

在路径积分的框架下,利用Alexandrou等人的方法,根据所谓的整体投影,计算了Dirac粒子与平面波和恒定磁场相互作用问题的格林函数.作为计算工具,我们在该形式中引入了两个恒等式(约束),它们的主要作用是积分维度的降低和一些经典路径的自然出现,并且由于恒定电磁场的存在,我们使用了涨落技术。因此,(GF)的计算减少到一个已知的高斯积分加上有效经典作用量的贡献。

英文摘要:

The Green function (GF) related to the problem of a Dirac particle interacting with a plane wave and constant magnetic fields is calculated in the framework of path integral via Alexandrou et al. formalism according to the so-called global projection. As a tool of calculation, we introduce two identities (constraints) into this formalism, their main role is the reduction of integrals dimension and the emergence in a natural way of some classical paths, and due to the existence of constant electromagnetic field, we have used the technique of fluctuations. Hence the calculation of the (GF) is reduced to a known gaussian integral plus a contribution of the effective classical action.

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。

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