论文标题

关于轴,域墙和宇宙弦的评论

Comments on Axions, Domain Walls, and Cosmic Strings

论文作者

Dine, Michael, Fernandez, Nicolas, Ghalsasi, Akshay, Patel, Hiren H.

论文摘要

一段时间以来,斧头被认为是暗物质的合理候选者。它们可以通过未对准来产生,但是有人认为,当通货膨胀发生在Peccei-Quinn过渡之前,可观的生产可能是宇宙弦乐引起的。这是广泛模拟的主题。但是有理由对轴突弦的可能作用表示怀疑。我们对这些问题进行了审查并详细说明,并认为参数字符串已经通过随机错位角度来解释。我们审查并详细介绍了这些问题,并提供了一些定性的论点,即通过假设随机错位角度已经考虑了参数字符串。这些论点是基于字符串解决方案的集体模式,特定模型的轴心辐射的计算以及仿真的综述。

Axions have for some time been considered a plausible candidate for dark matter. They can be produced through misalignment, but it has been argued that when inflation occurs before a Peccei-Quinn transition, appreciable production can result from cosmic strings. This has been the subject of extensive simulations. But there are reasons to be skeptical about the possible role of axion strings. We review and elaborate on these questions, and argue that parametrically strings are already accounted for by the assumption of random misalignment angles. We review and elaborate on these questions, and provide several qualitative arguments that parametrically strings are already accounted for by the assumption of random misalignment angles. The arguments are base on considerations of the collective modes of the string solutions, on computations of axion radiation in particular models, and reviews of simulations.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源