73 citations · 351 across the 14 of their papers we have counts for
5 papers · 1 filter
Self-doping instability of the Wigner-Mott insulator
S. Pankov, V. Dobrosavljevic
We present a theory describing the mechanism for the two-dimensional (2D) metal-insulator transition (MIT) in absence of disorder. A two-band Hubbard model is introduced, describin…
Resonating singlet valence plaquettes
S. Pankov, R. Moessner, S. L. Sondhi
We consider the simplest generalizations of the valence bond physics of SU(2) singlets to SU(N) singlets that comprise objects with N sites -- these are SU(N) singlet plaquettes wi…
2D-MIT as self-doping of a Wigner-Mott insulator
S. Pankov, V. Dobrosavljevic
We consider an interaction-driven scenario for the two-dimensional metal-insulator transition in zero magnetic field (2D-MIT), based on melting the Wigner crystal through vacancy-i…
Non-Fermi liquid behavior from two-dimensional antiferromagnetic fluctuations: a renormalization-group and large-N analysis
Sergey Pankov, Serge Florens, Antoine Georges +2
We analyze the Hertz-Moriya-Millis theory of an antiferromagnetic quantum critical point, in the marginal case of two dimensions (d=2,z=2). Up to next-to-leading order in the numbe…
Semiclassical Analysis of Extended Dynamical Mean Field Equations
Sergey Pankov, Gabriel Kotliar, Yukitoshi Motome
The extended Dynamical Mean Field Equations (EDMFT) are analyzed using semiclassical methods for a model describing an interacting fermi-bose system. We compare the semiclassical a…