Due to the nonvanishing average photon population of the squeezed vacuumstate, finite corrections to the scattering matrix are obtained. The lowestorder contribution to the electron mass shift for a one mode squeezed vacuumstate is given by $\delta m(\Omega ,s)/m=\alpha (2/\pi )(\Omega/m)^2\sinh^2(s)$, where $\Omega$ and $s$ stand for the mode frequency and thesqueeze parameter and $\alpha$ for the fine structure constant, respectively.The correction to the anomalous magnetic moment of the electron is $\deltaa_e(s)=-(4\alpha /\pi )\sinh^2(s)$.
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机译：由于压缩真空状态的平均光子数量不消失，因此可以对散射矩阵进行有限校正。单模压缩真空状态对电子质量位移的最低阶贡献由$ \ delta m（\ Omega，s）/ m = \ alpha（2 / \ pi）（\ Omega / m）^ 2 \ sinh ^ 2给出（s）$，其中$ \ Omega $和$ s $分别代表模频率和压缩参数，而$ \ alpha $代表精细结构常数。对电子异常磁矩的校正为$ \ deltaa_e（ s）=-（4 \ alpha / \ pi）\ sinh ^ 2（s）$。
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