Author(s)

Andrew Walcott Beckwith

Physics Department, College of Physics, Chongqing University Huxi Campus, Chongqing, China.

The lowest order mass for a KK graviton, as a non-zero product of two branes interacting via a situation similar to Steinhardt’s ekpyrotic universe is obtained, as to an alternative to the present dogma specifying that gravitons must be massless. The relative positions as to the branes give a dynamical picture as to how lowest order KK gravitons could be affected by contraction and then subsequent expansion. Initially we have bulk gravitons as a vacuum state. The massless condition is just one solution to a Stern Liuouville operator equation we discuss, which with a non-zero lowest order mass for a KK graviton permits modeling of gravitons via a dynamical Casmir effect which we generalize using Ruser and Duerrer’s 2007 work. In particular the blue spectrum for (massless gravitons), is revisited, with consequences for observational astrophysics.

Gravitons, Blue Spectrum, KK Theory, Casmir Effect

Beckwith, A. (2017) Lowest Order Mass of KK Graviton Revisited and How It May Affect the Blue Spectrum for Gravitons. Journal of High Energy Physics, Gravitation and Cosmology, 3, 296-307. doi: 10.4236/jhepgc.2017.32025.