46 citations · 139 across the 7 of their papers we have counts for
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Josephson lattice model for phase fluctuations of local pairs in copper-oxide superconductors
Malte Harland, Sergey Brener, Alexander I. Lichtenstein +1
We derive an expression for the effective Josephson coupling from the microscopic Hubbard model. It serves as a starting point for the description of phase fluctuations of local Co…
Electronic correlations and competing orders in multiorbital dimers: a cluster DMFT study
Malte Harland, Alexander I. Poteryaev, Sergey V. Streltsov +1
We investigate the violation of the first Hund's rule in 4 and 5 transition metal oxides that form solids of dimers. Bonding states within these dimers reduce the magnetizati…
: Implementation of the Stochastic Optimization Method for Analytic Continuation
Igor Krivenko, Malte Harland
We present the analytic continuation package, an efficient implementation of the Stochastic Optimization Method proposed by A. Mishchenko et al [Phys.…
Effective Heisenberg model and exchange interaction for strongly correlated systems
E. A. Stepanov, S. Brener, F. Krien +3
We consider the extended Hubbard model and introduce a corresponding Heisenberg-like problem written in terms of spin operators. The derived formalism is reminiscent of Anderson's…