Anomalous specific heat in high-density QED and QCD

Details Anomalous specific heat in high-density QED and QCD Anomalous specific heat in high-density QED and QCD

2003-09-02

arxiv.org/abs/hep-ph/0309019v3

Phys.Rev. D69 (2004) 011901

Physics

High Energy Physics

High Energy Physics - Phenomenology

REVTEX4, 6 pages, 2 figures; v2: minor improvements, references added; v3: factor of 2 error in the T^(7/3) coefficient correc

Scientific paper

10.1103/PhysRevD.69.011901

Long-range quasi-static gauge-boson interactions lead to anomalous (non-Fermi-liquid) behavior of the specific heat in the low-temperature limit of an electron or quark gas with a leading $T\ln T^{-1}$ term. We obtain perturbative results beyond the leading log approximation and find that dynamical screening gives rise to a low-temperature series involving also anomalous fractional powers $T^{(3+2n)/3}$. We determine their coefficients in perturbation theory up to and including order $T^{7/3}$ and compare with exact numerical results obtained in the large-$N_f$ limit of QED and QCD.

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