Matches in SemOpenAlex for { <https://semopenalex.org/work/W3104141520> ?p ?o ?g. }
- W3104141520 abstract "Here, we revisit the question of possible preheating of entropy modes in a two field model with a massless inflaton coupled to a matter scalar field. Using a perturbative approximation to the covariant method we demonstrate that there is indeed a parametric instability of the entropy mode which then at second order leads to exponential growth of the curvature fluctuation on super-Hubble scale. Back-reaction effects shut off the induced curvature fluctuations, but possibly not early enough to prevent phenomenological problems. This confirms previous results obtained using different methods and resolves a controversy in the literature." @default.
- W3104141520 created "2020-11-23" @default.
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- W3104141520 date "2015-09-06" @default.
- W3104141520 modified "2023-10-16" @default.
- W3104141520 title "Parametric resonance of entropy perturbations in massless preheating" @default.
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- W3104141520 doi "https://doi.org/10.1142/s0218271815500820" @default.
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