Abstract
Long-range quasistatic 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 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 We determine their coefficients in perturbation theory up to and including order and compare with exact numerical results obtained in the large- limit of QED and QCD.
- Received 9 September 2003
DOI:https://doi.org/10.1103/PhysRevD.69.011901
©2004 American Physical Society