@article{TEXTUAL,
      recid = {11411},
      author = {Chowdhury, Debanjan and Werman, Yochai and Berg, Erez and  Senthil, T.},
      title = {Translationally Invariant Non-Fermi-Liquid Metals with  Critical Fermi Surfaces: Solvable Models},
      journal = {Physical Review X},
      address = {2018-07-25},
      number = {TEXTUAL},
      abstract = {We construct examples of translationally invariant  solvable models of strongly correlated metals, composed of  lattices of Sachdev-Ye-Kitaev dots with identical local  interactions. These models display crossovers as a function  of temperature into regimes with local quantum criticality  and marginal-Fermi-liquid behavior. In the  marginal-Fermi-liquid regime, the dc resistivity increases  linearly with temperature over a broad range of  temperatures. By generalizing the form of interactions, we  also construct examples of non-Fermi liquids with critical  Fermi surfaces. The self-energy has a singular frequency  dependence but lacks momentum dependence, reminiscent of a  dynamical mean-field-theory-like behavior but in dimensions  d < ∞. In the low-temperature and strong-coupling limit, a  heavy Fermi liquid is formed. The critical Fermi surface in  the non-Fermi-liquid regime gives rise to quantum  oscillations in the magnetization as a function of an  external magnetic field in the absence of quasiparticle  excitations. We discuss the implications of these results  for local quantum criticality and for fundamental bounds on  relaxation rates. Drawing on the lessons from these models,  we formulate conjectures on coarse-grained descriptions of  a class of intermediate-scale non-Fermi-liquid behavior in  generic correlated metals.},
      url = {http://knowledge.uchicago.edu/record/11411},
}