平面电磁波作用下的费米子签名算符和Hadamard态
The Fermionic Signature Operator and Hadamard States in the Presence of a Plane Electromagnetic Wave
摘要：
本文给出了在平面电磁波形式的含时外场作用下，闵可夫斯基空间中量子化Dirac场的一个特殊态的非微扰构造.通过对费米子签名算符的显式计算，证明了狄拉克算符具有强质量振荡性质。我们证明了由此产生的费米子投影态是阿达玛态。
英文摘要：
We give a non-perturbative construction of a distinguished state for the quantized Dirac field in Minkowski space in the presence of a time-dependent external field of the form of a plane electromagnetic wave. By explicit computation of the fermionic signature operator, it is shown that the Dirac operator has the strong mass oscillation property. We prove that the resulting fermionic projector state is a Hadamard state.
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