From the 1 of 7k papers with an AI index.
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9 papers · 2 filters
Intermediate-valence behavior of the transition-metal oxide CaCuRuO
A. Krimmel, A. Günther, W. Kraetschmer +7
The transition--metal oxide CaCuRuO with perovskite--type structure shows characteristic properties of an intermediate--valence system. The temperature--dependent su…
Correlations in a band insulator
Michael Sentef, Jan Kunes, Philipp Werner +1
We study a model of a covalent band insulator with on-site Coulomb repulsion at half-filling using dynamical mean-field theory. Upon increasing the interaction strength the system…
Topology driven quantum phase transitions in time-reversal invariant anyonic quantum liquids
Charlotte Gils, Simon Trebst, Alexei Kitaev +3
Indistinguishable particles in two dimensions can be characterized by anyonic quantum statistics more general than those of bosons or fermions. Such anyons emerge as quasiparticles…
Assessing the accuracy of projected entangled-pair states on infinite lattices
Bela Bauer, Guifre Vidal, Matthias Troyer
Generalizations of the density-matrix renormalization group method have long been sought after. In this paper, we assess the accuracy of projected entangled-pair states on infinite…
Dynamical phase transition in correlated fermionic lattice systems
Martin Eckstein, Marcus Kollar, Philipp Werner
We use non-equilibrium dynamical mean-field theory to demonstrate the existence of a critical interaction in the real-time dynamics of the Hubbard model after an interaction quench…
Antiferromagnetism and the gap of a Mott insulator: Results from analytic continuation of the self-energy
Xin Wang, Emanuel Gull, Luca de' Medici +2
Direct analytic continuation of the self energy is used to determine the effect of antiferromagnetic ordering on the spectral function and optical conductivity of a Mott insulator.…