We study the interplay of superconductivity and a wide spectrum of critical (multifractal) wave
functions (“spectrum-wide quantum criticality,” SWQC) in the one-dimensional Aubry-André …

We study superconductivity in a two-dimensional, disordered marginal Fermi liquid. At the
semiclassical level, the transition temperature T c is strongly suppressed because marginal …

We report the results of exact-diagonalization studies of Hubbard models on a 4× 4 square
lattice with periodic boundary conditions and various degrees and patterns of …

With substantial evidence of glassy behavior in the phase diagram of high-T c
superconductors and its coexistence with superconductivity, we attempt to answer the …

Striped phases, in which spin, charge, and pairing correlations vary inhomogeneously in the
CuO 2 planes, are a known experimental feature of cuprate superconductors, and are also …

Using dynamic cluster quantum Monte Carlo simulations, we study the superconducting
behavior of a 1/8 doped two-dimensional Hubbard model with imposed unidirectional …

We propose a mechanism whereby disorder can enhance the transition temperature T c of
an unconventional superconductor with pairing driven by exchange of spin fluctuations. The …

We implement the contractor-renormalization method to study the checkerboard Hubbard
model on various finite-size clusters as function of the inter-plaquette hopping t′ and the on …

We consider Kohn-Luttinger mechanism for superconductivity in a two-dimensional electron
gas confined to a narrow well between two grounded metallic planes with two occupied …

We have considered the half-filled disordered attractive Hubbard model on a square lattice,
in which the on-site attraction is switched off on a fraction f of sites, while keeping a finite U …