超强磁化真空中光传播的双折射和非横截性
Birefringence and non-transversality of light propagation in an ultra-strongly magnetized vacuum
摘要：
在有效作用方法的框架内，考虑了具有任意强度的恒定磁场背景的真空中的双折射现象。磁化真空中双折射的一个新特征是平行模不再是横模，它的偏振方向平行于包含磁场和光子波矢的平面。我们详细研究了任意磁场下的这一特性，并给出了超强磁场下的解析结果。我们的结果在天体物理可能的物理意义进行了讨论。
英文摘要：
The birefringence phenomenon in the vacuum with a constant magnetic background of arbitrary strength is considered within the framework of the effective action approach. A new feature of the birefringence in a magnetized vacuum is that the parallel mode, which is polarized parallel to the plane containing the magnetic field and the photon wave vector, is no longer transverse. We have studied this feature in detail for arbitrary magnetic field and provided analytic results for the ultra-strong magnetic field regime. Possible physical implications of our results in astrophysics are discussed.
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