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arXiv 1704.00482hep-thastro-ph.HEhep-ph
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常场中单圈标量传播子的单粒子可约贡献

One-particle reducible contribution to the one-loop scalar propagator in a constant field

James P. Edwards, Christian Schubert

摘要:

最近,Gies和Karbstein证明了双圈欧拉-海森堡拉格朗日量除了已知的单粒子不可约贡献外,还接收有限的单粒子可约贡献。在这里,我们证明了一个类似的贡献存在于一个恒定的领域已经在一个循环的水平传播,我们计算这种贡献的标量QED的情况下。我们还提出了一个独立的推导Gies-Karbstein结果使用世界线形式主义,治疗标量和旋量QED的情况下,在一个统一的方式。

英文摘要:

Recently, Gies and Karbstein showed that the two-loop Euler-Heisenberg Lagrangian receives a finite one-particle reducible contribution in addition to the well-known one-particle irreducible one. Here, we demonstrate that a similar contribution exists for the propagator in a constant field already at the one-loop level, and we calculate this contribution for the scalar QED case. We also present an independent derivation of the Gies-Karbstein result using the worldline formalism, treating the scalar and spinor QED cases in a unified manner.

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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