标题： 宇宙学引力波背景 显示英文标题

标题： Cosmological Gravitational Wave Backgrounds

摘要： 对可能的宇宙学遥远引力波背景源进行了综述，特别是那些可能在0.1到100 mHz的LISA频段产生可检测背景的源。 此处考虑的例子包括暴胀期间暴胀场和引力子场中的真空涨落放大、一阶相变中的气泡碰撞、经典自序标量的戈德斯通模以及宇宙弦和其他规范缺陷。 回顾了这些源的特征尺度和基本机制，并为每个源估计了谱。 讨论了LISA探测对基础物理和宇宙学的独特影响。 显示英文摘要

摘要： An overview is presented of possible cosmologically distant sources of gravitational wave backgrounds, especially those which might produce detectable backgrounds in the LISA band between 0.1 and 100 mHz. Examples considered here include inflation-amplified vacuum fluctuations in inflaton and graviton fields, bubble collisions in first-order phase transitions, Goldstone modes of classical self-ordering scalars, and cosmic strings and other gauge defects. Characteristic scales and basic mechanisms are reviewed and spectra are estimated for each of these sources. The unique impact of a LISA detection on fundamental physics and cosmology is discussed.