arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2201.11098physics.plasm-phastro-ph.SRhep-phphysics.optics
收藏

laser光与真空的非线性相互作用:强磁场对能量密度和压强的贡献

Non-linear interaction of laser light with vacuum: contributions to the energy density and pressure in presence of an intense magnetic field

M. Ángeles Pérez-García, A. Pérez Martínez, E. Rodríguez Querts

摘要:

最近的模拟表明,在密度不足的等离子体中,现有设施中的超强激光很可能在数百微米的距离上产生接近千特斯拉强度的非常大的电场和磁场。虽然还需要克服一些技术上的困难,但预计将来会有更强的。此外,它已被证明,真空表现出一种特殊的非线性行为,在高磁场和电场强度的存在。在这项工作中,我们感兴趣的是在真空的能量密度和压力的辐射相互作用时,在外部磁场的存在下,它的贡献的分析。使用欧拉-海森堡形式主义在弱场的制度,即小于临界量子电动力学场强度值,我们评估这些幅度和分析我们发现的高度各向异性行为。我们的工作对激光和天体物理磁化的低密度系统的光子-光子散射有影响,这些系统远离其表面,物质效应越来越可以忽略不计。

英文摘要:

Recent simulations show that very large electric and magnetic fields near the kilo Tesla strength will likely be generated by ultra-intense lasers at existing facilities over distances of hundreds of microns in underdense plasmas. Stronger ones are even expected in the future although some technical dificulties must be overcome. In addition, it has been shown that vacuum exhibits a peculiar non-linear behaviour in presence of high magnetic and electric field strengths. In this work we are interested in the analysis of thermodynamical contributions of vacuum to the energy density and pressure when radiation interacts with it in the presence of an external magnetic field. Using the Euler-Heisenberg formalism in the regime of weak fields i.e. smaller than critical Quantum Electrodynamics field strength values, we evaluate these magnitudes and analyze the highly anisotropic behaviour we find. Our work has implications for photon-photon scattering with lasers and astrophysically magnetized underdense systems far outside their surface where matter effects are increasingly negligible.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑