Nonextensive scalar field theories and dark energy models

Christian Beck

Physica A: Statistical Mechanics and its Applications, 2004, vol. 340, issue 1, 459-466

Abstract: Current astronomical measurements indicate that approximately 73% of the universe is made up of dark energy. Stochastically quantized self-interacting scalar fields can serve as suitable models to generate dark energy. We study a particular model where the scalar field theory underlying dark energy exhibits strongest possible chaotic behaviour. It is shown that the fluctuating chaotic field momenta obey a generalized (nonextensive) statistical mechanics, with an entropic index q given by q=3, respectively, q=−1 if the escort formalism is used.

Keywords: Dark energy; Chaotic scalar fields; Nonextensive statistical mechanics (search for similar items in EconPapers)
Date: 2004
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:340:y:2004:i:1:p:459-466

DOI: 10.1016/j.physa.2004.04.041

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