Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory
Strong electronic correlations pose one of the biggest challenges to solid state theory.
Recently developed methods that address this problem by starting with the local, eminently …
Recently developed methods that address this problem by starting with the local, eminently …
Quenched Pair Breaking by Interlayer Correlations as a Key to Superconductivity in
The recent discovery of superconductivity in La 3 Ni 2 O 7 with T c≃ 80 K under high
pressure opens up a new route to high-T c superconductivity. This material realizes a bilayer …
pressure opens up a new route to high-T c superconductivity. This material realizes a bilayer …
Tracking the footprints of spin fluctuations: A multimethod, multimessenger study of the two-dimensional Hubbard model
The Hubbard model represents the fundamental model for interacting quantum systems and
electronic correlations. Using the two-dimensional half-filled Hubbard model at weak …
electronic correlations. Using the two-dimensional half-filled Hubbard model at weak …
Local electronic correlation at the two-particle level
Electronic-correlated systems are often well described by dynamical mean field theory
(DMFT). While DMFT studies have mainly focused hitherto on one-particle properties …
(DMFT). While DMFT studies have mainly focused hitherto on one-particle properties …
Low-depth circuit ansatz for preparing correlated fermionic states on a quantum computer
Quantum simulations are bound to be one of the main applications of near-term quantum
computers. Quantum chemistry and condensed matter physics are expected to benefit from …
computers. Quantum chemistry and condensed matter physics are expected to benefit from …
Fluctuation diagnostics of the electron self-energy: Origin of the pseudogap physics
We demonstrate how to identify which physical processes dominate the low-energy spectral
functions of correlated electron systems. We obtain an unambiguous classification through …
functions of correlated electron systems. We obtain an unambiguous classification through …
Divergent precursors of the Mott-Hubbard transition at the two-particle level
Identifying the fingerprints of the Mott-Hubbard metal-insulator transition may be quite
elusive in correlated metallic systems if the analysis is limited to the single particle level …
elusive in correlated metallic systems if the analysis is limited to the single particle level …
Towards ab initio calculations with the dynamical vertex approximation
While key effects of the many-body problem—such as Kondo and Mott physics—can be
understood in terms of on-site correlations, non-local fluctuations of charge, spin, and …
understood in terms of on-site correlations, non-local fluctuations of charge, spin, and …
Inhomogeneous field theory inside the arctic circle
Motivated by quantum quenches in spin chains, a one-dimensional toy-model of fermionic
particles evolving in imaginary-time from a domain-wall initial state is solved. The main …
particles evolving in imaginary-time from a domain-wall initial state is solved. The main …
High-frequency asymptotics of the vertex function: Diagrammatic parametrization and algorithmic implementation
Vertex functions are a crucial ingredient of several forefront many-body algorithms in
condensed matter physics. However, the full treatment of their frequency and momentum …
condensed matter physics. However, the full treatment of their frequency and momentum …