Nonextensive scalar field theories and dark energy models

Bibcode
2004PhyA..340..459B
DOI
10.1016/j.physa.2004.04.041
Beck, C.
Bibliographical reference

Physica A, Volume 340, Issue 1-3, p. 459-466.

Advertised on:
9
2004
Number of authors
1
IAC number of authors
0
Citations
17
Refereed citations
14
Description
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.
Type
Refereed
Dark energy

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