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Parametric amplification of metric fluctuations through a bouncing phase

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arxiv hep-th/0307077 v2 pith:MDWM4YYP submitted 2003-07-08 hep-th astro-phgr-qchep-ph

Jerome Martin , Patrick Peter This is my paper · ORCID
classification hep-thastro-phgr-qchep-ph
keywords bounceperturbationsscalaruniverseaffectedamplificationbehaviorbouncing
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We clarify the properties of the behavior of classical cosmological perturbations when the Universe experiences a bounce. This is done in the simplest possible case for which gravity is described by general relativity and the matter content has a single component, namely a scalar field in a closed geometry. We show in particular that the spectrum of scalar perturbations can be affected by the bounce in a way that may depend on the wave number, even in the large scale limit. This may have important implications for string motivated models of the early Universe.

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Cited by 1 Pith paper

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  1. Non-singular bounce solutions in Myrzakulov $f(R,T)$ gravity

    gr-qc 2025-01 reject novelty 4.0 of 10

    In Myrzakulov F(R,T) gravity, free connection functions can be chosen to produce matter-bounce backgrounds with a scale-invariant scalar power spectrum.

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