2000 character limit reached
A critical strange metal from fluctuating gauge fields in a solvable random model (1807.04754v2)
Published 12 Jul 2018 in cond-mat.str-el, cond-mat.dis-nn, cond-mat.stat-mech, and hep-th
Abstract: Building upon techniques employed in the construction of the Sachdev-Ye-Kitaev (SYK) model, which is a solvable $0+1$ dimensional model of a non-Fermi liquid, we develop a solvable, infinite-ranged random-hopping model of fermions coupled to fluctuating U(1) gauge fields. In a specific large-$N$ limit, our model realizes a gapless non-Fermi liquid phase, which combines the effects of hopping and interaction terms. We derive the thermodynamic properties of the non-Fermi liquid phase realized by this model, and the charge transport properties of an infinite-dimensional version with spatial structure.
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