Non-linear stability of \(\alpha^\prime\)-corrected Friedmann equations
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Publication:6158618
DOI10.1007/JHEP03(2023)119arXiv2212.11392MaRDI QIDQ6158618
Author name not available (Why is that?)
Publication date: 31 May 2023
Published in: (Search for Journal in Brave)
Abstract: We study the non-linear stability of fixed-point solutions to the -exact equations from O invariant cosmology, with and without matter perturbations. Previous non-linear analysis in the literature is revisited, and its compatibility with known linear perturbation results is shown. Some formal aspects of cosmological perturbations in duality invariant cosmology are discussed, and we show the existence of time-reparameterization invariant variables for perturbations.
Full work available at URL: https://arxiv.org/abs/2212.11392
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