Color superconductivity and Tsallis statistics
- Department of Physics, State University of New York at Fredonia, Fredonia, New York 14063 (United States)
The generalized nonextensive statistics proposed by Tsallis have been successfully utilized in many systems where long range interactions are present. For high density quark matter an attractive long range interaction arising from single gluon exchange suggests the formation of a diquark condensate. We study the effects on this color superconducting phase for two quark flavors due to a change to Tsallis statistics. By numerically solving the gap equation we obtain a generalization of the universality condition (2{phi}{sub 0}/T{sub C}){approx_equal}3.52 and determine the temperature dependence of the gap. For the Tsallis parameter q{approx_equal}1 the specific heat of the gapped fermions is exponential becoming more linear as q increases. This suggests that for larger values of q s-wave color superconductors behave like high T{sub c} superconductors rather than weak superconductors.
- OSTI ID:
- 21250718
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 78, Issue 5; Other Information: DOI: 10.1103/PhysRevD.78.054010; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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