Polarization-operator approach to optical signatures of axion-like particles in strong laser pulses
Polarization-operator approach to optical signatures of axion-like particles in strong laser pulses
复制标题
DOI：
10.1016/j.physletb.2017.03.043
复制
发表时间：
2016-12
影响因子：
4.4
通讯作者：
S. Villalba-Ch'avez;T. Podszus;C. Muller
中科院分区：
文献类型：
--
作者：
S. Villalba-Ch'avez;T. Podszus;C. Muller
利用高强度激光脉冲的强场，可以揭示探测光子进入类轴子粒子的假想振荡。在任意平面波背景下，我们确定了由轴子场量子涨落引起的偏振张量，并用它来计算初始线极化探针光束的偏振特性是如何被改变的。我们发现，基于现代设施和仪器的各种实验设置可能会导致这些候选粒子参数空间上的新的不相容边界。脉冲形状对发现潜力的影响通过比较高斯包络波和sin2剖面调制波的情况来研究。分析表明，由椭圆率引起的上限值对这种变化相对不敏感，而由偏振面旋转引起的上限值则更依赖于场的形状。
Hypothetical oscillations of probe photons into axion-like particles might be revealed by exploiting the strong fields of high-intensity laser pulses. Considering an arbitrary plane-wave background, we determine the polarization tensor induced by the quantum fluctuations of the axion field and use it to calculate how the polarimetric properties of an initially linear-polarized probe beam are modified. We find that various experimental setups based on contemporary facilities and instrumentation might lead to new exclusion bounds on the parameter space of these particle candidates. The impact of the pulse shape on the discovery potential is studied via a comparison between the cases in which the wave is modulated by a Gaussian envelope and a sin 2 profile. This analysis shows that the upper limits resulting from the ellipticity are relatively insensitive to this change, whereas those arising from the rotation of the polarization plane turn out to be more dependent on the field shape.