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Galaxies 2014, 2(1), 160-188;

ƒ(R) Gravity, Relic Coherent Gravitons and Optical Chaos

Alpha Institute of Advanced Study, 10600 Cibola Lp 311 NW Albuquerque, NM 87114 also 11 Rutafa Street, Budapest H-1165, Hungary
Dipartimento di Fisica e Chimica, Istituto Universitario di Ricerca Scientifica "Santa Rita", Prato 59100, Italy
International Institute for Applicable Mathematics & Information Sciences, Hyderabad 500001, India
Institute for Theoretical Physics and Advanced Mathematics Einstein-Galilei (IFM), Via Santa Gonda 14, Prato 59100, Italy
Author to whom correspondence should be addressed.
Received: 27 November 2013 / Revised: 18 February 2014 / Accepted: 19 February 2014 / Published: 4 March 2014
(This article belongs to the Special Issue Beyond Standard Gravity and Cosmology)
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We discuss the production of massive relic coherent gravitons in a particular class of ƒ(R) gravity, which arises from string theory, and their possible imprint in the Cosmic Microwave Background. In fact, in the very early Universe, these relic gravitons could have acted as slow gravity waves. They may have then acted to focus the geodesics of radiation and matter. Therefore, their imprint on the later evolution of the Universe could appear as filaments and a domain wall in the Universe today. In that case, the effect on the Cosmic Microwave Background should be analogous to the effect of water waves, which, in focusing light, create optical caustics, which are commonly seen on the bottom of swimming pools. We analyze this important issue by showing how relic massive gravity waves (GWs) perturb the trajectories of the Cosmic Microwave Background photons (gravitational lensing by relic GWs). The consequence of the type of physics discussed is outlined by illustrating an amplification of what might be called optical chaos. View Full-Text
Keywords: relic gravitons; optical chaos; modified gravity; gravitational lensing relic gravitons; optical chaos; modified gravity; gravitational lensing

Figure 1

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Crowell, L.B.; Corda, C. ƒ(R) Gravity, Relic Coherent Gravitons and Optical Chaos. Galaxies 2014, 2, 160-188.

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