Science with the space-based interferometer LISA. IV:probing inflation with gravitational waves
Science with the space-based interferometer LISA. IV:probing inflation with gravitational waves
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DOI：
10.1088/1475-7516/2016/12/026
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发表时间：
2016-12-01
影响因子：
6.4
通讯作者：
Tasinato, Gianmassimo
中科院分区：
文献类型：
--
作者：
Bartolo, Nicola;Caprini, Chiara;Tasinato, Gianmassimo
我们研究了丽莎天基干涉仪探测暴胀过程中不同机制产生的随机引力波背景的可能性。专注于动机良好的情况下，我们研究由此产生的贡献，从粒子生产过程中的通货膨胀，膨胀的旁观者领域与不同的声速，有效的领域理论的通货膨胀与特定模式的对称性破缺和模型导致形成的原始黑洞。丽莎的投影灵敏度以与模型无关的方式用于各种探测器设计和配置。我们证明，丽莎能够探测这些动机良好的通货膨胀的情况下，超出了不可约的真空张量模式预期从任何通货膨胀的背景。
We investigate the potential for the LISA space- based interferometer to detect the stochastic gravitational wave background produced from different mechanisms during inflation. Focusing on well-motivated scenarios, we study the resulting contributions from particle production during inflation, inflationary spectator fields with varying speed of sound, effective field theories of inflation with specific patterns of symmetry breaking and models leading to the formation of primordial black holes. The projected sensitivities of LISA are used in a model- independent way for various detector designs and configurations. We demonstrate that LISA is able to probe these well- motivated inflationary scenarios beyond the irreducible vacuum tensor modes expected from any inflationary background.