68 citations · 254 across the 11 of their papers we have counts for
11 papers
Bypassing the lattice BCS-BEC crossover in strongly correlated superconductors: resilient coherence from multiorbital physics
Niklas Witt, Yusuke Nomura, Sergey Brener +3
Superconductivity emerges from the spatial coherence of a macroscopic condensate of Cooper pairs. Increasingly strong binding and localization of electrons into these pairs comprom…
Ab initio electron-lattice downfolding: potential energy landscapes, anharmonicity, and molecular dynamics in charge density wave materials
Arne Schobert, Jan Berges, Erik G. C. P. van Loon +4
The interplay of electronic and nuclear degrees of freedom presents an outstanding problem in condensed matter physics and chemistry. Computational challenges arise especially for…
Local Plaquette Physics as Key Ingredient of High-Temperature Superconductivity in Cuprates
M. Danilov, E. G. C. P. van Loon, S. Brener +3
A major pathway towards understanding complex systems is given by exactly solvable reference systems that contain the essential physics of the system. For the Hubbard mode…
Dual fermion method as a prototype of generic reference-system approach for correlated fermions
Sergey Brener, Evgeny A. Stepanov, Alexey N. Rubtsov +2
We present a purely diagrammatic derivation of the dual fermion scheme [Phys. Rev. B 77 (2008) 033101]. The derivation makes particularly clear that a similar scheme can be develop…
Exactly solvable model of strongly correlated -wave superconductivity
Malte Harland, Sergey Brener, Mikhail I. Katsnelson +1
We present an infinite-dimensional lattice of two-by-two plaquettes, the quadruple Bethe lattice, with Hubbard interaction and solve it exactly by means of the cluster dynamical me…
Detecting quantum critical points in the Fermi-Hubbard model via complex network theory
Andrey A. Bagrov, Mikhail Danilov, Sergey Brener +3
A considerable success in phenomenological description of high-T superconductors has been achieved within the paradigm of Quantum Critical Point (QCP) - a parental state…