Authors: Andrew Beckwith
The case for a four dimensional graviton mass (non zero) influencing reacceleration of the universe in five dimensions is stated, with particular emphasis upon if five dimensional geometries as given below give us new physical insight as to cosmological evolution. A calculated inflaton φ(t) may partly re-emerge after fading out in the aftermath of inflation. The inflaton may contribute to, with non zero graviton mass, in re acceleration of the universe a billion years ago. The inflaton also may be the source of re acceleration of the universe, especially if the effects of a re emergent inflaton are in tandem with the appearance of macro effects of a small graviton mass, leading to a speed up of the rate of expansion of the universe at red shit value of Z ~ .423
Comments: Essay written for the Gravity Research Foundation 2010 Awards for Essays on Gravitation, Submitted March 4th, 2010
[v1] 4 Mar 2010
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