Astrophysics
[Submitted on 20 May 2007 (v1), last revised 13 Aug 2007 (this version, v2)]
Title:K-Bounce
View PDFAbstract: By demanding that a bounce is nonsingular and that perturbations are well-behaved at all times, we narrow the scope of possible models with one degree of freedom that can describe a bounce in the absence of spatial curvature. We compute the general properties of the transfer matrix of perturbations through the bounce, and show that spectral distortions of the Bardeen potential $\Phi$ are generically produced only for the small wavelengths, although the spectrum of long wavelength curvature perturbations produced in a contracting phase gets propagated unaffected through such a bounce.
Submission history
From: Luis Raul Abramo [view email][v1] Sun, 20 May 2007 21:52:43 UTC (190 KB)
[v2] Mon, 13 Aug 2007 11:04:45 UTC (853 KB)
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