Non-Fermi liquids from holography
High Energy Physics - Theory
2011-05-10 v3 Strongly Correlated Electrons
Abstract
We report on a potentially new class of non-Fermi liquids in (2+1)-dimensions. They are identified via the response functions of composite fermionic operators in a class of strongly interacting quantum field theories at finite density, computed using the AdS/CFT correspondence. We find strong evidence of Fermi surfaces: gapless fermionic excitations at discrete shells in momentum space. The spectral weight exhibits novel phenomena, including particle-hole asymmetry, discrete scale invariance, and scaling behavior consistent with that of a critical Fermi surface postulated by Senthil.
Cite
@article{arxiv.0903.2477,
title = {Non-Fermi liquids from holography},
author = {Hong Liu and John McGreevy and David Vegh},
journal= {arXiv preprint arXiv:0903.2477},
year = {2011}
}
Comments
10 pages, 16 figures. v2: added references, corrected figures, some minor changes. v3: figure 5 replaced