arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2010.03089astro-ph.COgr-qc
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波动光学中的多平面透镜效应

Multi-plane lensing in wave optics

Job Feldbrugge

摘要:

透镜中的波效应在经典焦散奇异性和量子干涉的交叉处形成了丰富的现象,但众所周知,很难建模。在射电天文学中,最近观测到的大量射电暴和快速射电暴,以及预期的引力波探测器灵敏度的提高,表明在不久的将来可能会观测到波效应。干涉条纹对不能从几何光学推断的物理参数敏感。特别地,对于多平面透镜,图案取决于透镜平面的红移。提出了一种新的方法来定义和有效地评估相干电磁波的多平面透镜等离子体和引力透镜在多项式时间。这种方法将允许使用无线电和引力波源以新颖的方式探测我们的宇宙。

英文摘要:

Wave effects in lensing form a rich phenomenon at the intersection of classical caustic singularities and quantum interference, yet are notoriously difficult to model. A large number of recently observed pulsars and fast radio bursts in radio astronomy and the prospected increase in sensitivity of gravitational wave detectors suggest that wave effects will likely be observed in the near future. The interference fringes are sensitive to physical parameters which cannot be inferred from geometric optics. In particular, for multi-plane lensing, the pattern depends on the redshifts of the lens planes. I present a new method to define and efficiently evaluate multi-plane lensing of coherent electromagnetic waves by plasmas and gravitational lenses in polynomial time. This method will allow the use of radio and gravitational wave sources to probe our universe in novel ways.

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。

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