论文标题
激光 - 血浆相互作用产生轴突样粒子
Axionlike-particle generation by laser-plasma interaction
论文作者
论文摘要
在任何实验中尚未发现假设的轴子和类似轴突状的颗粒，与光子无效。随着激光技术的改进，与大型磁铁场相比，可以在实验室中使用激光 - 播种相互作用在实验室中创建更强但更短的准静态电场和磁场，以帮助搜索轴上。在本文中，我们讨论了使用平面或圆柱体对称激光 - 播放场作为背景和X射线自由电子激光作为探针的可行性。探针和背景场均极化，以使其在相应的参数空间中存在ALP会导致探针的极化旋转，该探针可以高精度检测到。此外，等离子体中的结构化场为相互作用创建了可调的横向轮廓，并通过相匹配机制提高了信噪比。本文中讨论的ALP质量范围从$ 10^{ - 3} $ eV到1 keV。给出了一些简单的方案以及对探针光子的ALP产生和极化旋转的估计，这揭示了实验室未来激光 - 血压ALP源的可能性。
The hypothetical axion and axion-like particles, feebly coupled with photon, have not yet been found in any experiment. With the improvement of laser technique, much stronger but shorter quasi-static electric and magnetic fields can be created in laboratory using laser-plasma interaction, compared to the fields of large magnets, to help the search of axion. In this article, we discuss the feasibility of ALPs exploration using planarly or cylindrically symmetric laser-plasma fields as background and an x-ray free-electron laser as probe. Both the probe and the background fields are polarized such that the existence of ALPs in the corresponding parameter space will cause polarization rotation of the probe, which can be detected with high accuracy. Besides, a structured field in the plasma creates a tunable transverse profile for the interaction and improves the signal-to-noise ratio via phase-matching mechanism. The ALP mass discussed in this article ranges from $10^{-3}$ eV to 1 keV. Some simple schemes and estimations on ALP production and polarization rotation of probe photon are given, which reveals the possibility of future laser-plasma ALP source in laboratory.
