Gravity and Antigravity with Discrete Interactions: Alternatives I and II
Abstract
Questioning the experimental basis of continuous descriptions of fundamental interactions we discuss classical gravity as an effective continuous firstorder approximation of a discrete interaction. The subdominant contributions produce a residual interaction that may be repulsive and whose physical meaning is of a correction of the excess contained in the continuous approximation. These residual interactions become important (or even dominate) at asymptotical conditions of very large distances from where there are data (rotation curves of galaxies, inflation, accelerated expansion, etc) and cosmological theoretical motivations that suggest new physics (new forms of interactions) or new forms (dark) of matter and energy. We show that a discrete picture of the world (of matter and of its interactions) produce, as an approximation, the standard continuous picture and more. The flat rotation curve of galaxies, for example, may have a simple and natural explanation.
 Publication:

arXiv eprints
 Pub Date:
 November 2001
 arXiv:
 arXiv:grqc/0111052
 Bibcode:
 2001gr.qc....11052D
 Keywords:

 General Relativity and Quantum Cosmology;
 Astrophysics;
 High Energy Physics  Phenomenology;
 High Energy Physics  Theory;
 Mathematical Physics
 EPrint:
 18 pages