Abstract
Abstract
Perturbative quantum corrections to primordial power spectra are important for testing the robustness and the regime of validity of inflation as an effective field theory. Although this has been done extensively for the density power spectrum (and, to some extent, for the tensor spectrum) using loop corrections, we do so in an open quantum system approach to the problem. Specifically, we calculate the first-order corrections to the primordial gravitational wave spectrum due to (cubic) tensor interactions alone. We show that our results match expectations from standard loop corrections only in the strict Markovian limit, and therefore, establish a systematic way to relax this approximation in the future, as is generally necessary for gravitational systems.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Reference69 articles.
1. S. Weinberg, Quantum contributions to cosmological correlations, Phys. Rev. D 72 (2005) 043514 [hep-th/0506236] [INSPIRE].
2. S. Weinberg, Quantum contributions to cosmological correlations. II. Can these corrections become large?, Phys. Rev. D 74 (2006) 023508 [hep-th/0605244] [INSPIRE].
3. J. Martin and R. H. Brandenberger, The TransPlanckian problem of inflationary cosmology, Phys. Rev. D 63 (2001) 123501 [hep-th/0005209] [INSPIRE].
4. R. H. Brandenberger and J. Martin, The Robustness of inflation to changes in superPlanck scale physics, Mod. Phys. Lett. A 16 (2001) 999 [astro-ph/0005432] [INSPIRE].
5. R. Brandenberger, Limitations of an effective field theory treatment of early Universe cosmology, Phil. Trans. Roy. Soc. Lond. A 380 (2022) 20210178 [arXiv:2108.12743] [INSPIRE].
Cited by
14 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献