186 citations · 2.3k across the 45 of their papers we have counts for
45 papers
Strange diffusivity of incoherent metal in half-filled two-dimensional Hubbard model
Youngmin Eom, Igor S. Tupitsyn, Nikolay V. Prokof'ev +3
We study charge transport across the metal-insulator crossover in the half-filled two-dimensional Hubbard model, with particular emphasis on precision control. The dynamic current-…
Origin of misleading convergence in self-consistent many-electron theories: Fundamental aspects and practical implications
Herbert Eßl, Matthias Reitner, Evgeny Kozik +1
Self-consistent approaches in many-electron problems typically converge to an unphysical solution in strongly correlated regimes. By deriving the mathematical condition for the sta…
Fractional quantum Hall states by Feynman's diagrammatic expansion
Ben Currie, Evgeny Kozik
The fractional quantum Hall (FQH) effect arises from strong electron correlations in a quantising magnetic field, and features exotic emergent phenomena such as electron fractional…
Strange Metal to Insulator Transitions in the Lowest Landau Level
Ben Currie, Evgeny Kozik
We study the microscopic model of electrons in the partially-filled lowest Landau level interacting via the Coulomb potential by the diagrammatic theory within the GW approximation…
Combinatorial summation of Feynman diagrams: Equation of state of the 2D SU(N) Hubbard model
Evgeny Kozik
Feynman's diagrammatic series is a common language for a formally exact theoretical description of systems of infinitely-many interacting quantum particles, as well as a foundation…
Misleading convergence of the skeleton diagrammatic technique: when the correct solution can be found
Aaram J. Kim, Evgeny Kozik
Convergence of the self-consistent skeleton diagrammatic technique (SDT) -- in which the full Green's function is determined through summation of Feynman diagrams in terms of itsel…