Scale Invariant Density Perturbations from Cyclic Cosmology

Abstract

It is shown how quantum fluctuations of the radiation during the contraction era of a CBE (Comes Back Empty) cyclic cosmology can provide density fluctuations which re-enter the horizon during the subsequent expansion era and at lowest order are scale invariant, in a Harrison-Zel'dovich-Peebles sense, as necessary to be consistent with observations of large scale structure.

11 pages, LaTeX

References in corpus (3)

• Turnaround in Cyclic Cosmology
• Cyclic Entropy: An Alternative to Inflationary Cosmology
• Possible Duality of CBE and Penrose CCC Cyclic Cosmologies

Cited by in corpus (2)

• Holographic Principle, Cosmological Constant and Cyclic Cosmology
• Holographic Entanglement Entropy in Cyclic Cosmology