# Effect of gauge-field interaction on fermion transport in two dimensions: Hartree conductivity correction and dephasing

@article{Ludwig2008EffectOG,
title={Effect of gauge-field interaction on fermion transport in two dimensions: Hartree conductivity correction and dephasing},
author={Thomas Ludwig and Igor V. Gornyi and Alexander D. Mirlin and Peter Woelfle},
journal={Physical Review B},
year={2008},
volume={77},
pages={235414}
}
• Published 14 April 2008
• Physics
• Physical Review B
We consider the quantum corrections to the conductivity of fermions interacting via a Chern-Simons gauge field, and concentrate on the Hartree-type contributions. The first-order Hartree approximation is only valid in the limit of weak coupling \lambda to the gauge field, and results in an antilocalizing conductivity correction, \sim \lambda^2 g \ln^2 T (g is the conductance). In the case of strong coupling, an infinite summation of higher-order terms is necessary, including both the virtual…
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