5.7k citations
- ETH ZurichCH25 papers
- Istituto di Radioastronomia di BolognaIT10 papers
- Swisscom (Switzerland)CH9 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Institute for Theoretical PhysicsCH6 papers
- Oak Ridge National LaboratoryUS6 papers
- Universität HamburgDE6 papers
- Centre de Recherche Astrophysique de LyonFR5 papers
- École Normale Supérieure de LyonFR5 papers
- École Polytechnique Fédérale de LausanneCH5 papers
- University of BaselCH5 papers
- National Institute for AstrophysicsIT4 papers
6 papers · 1 filter
Dynamical scaling as a signature of multiple phase competition in YbTiO
Allen Scheie, Owen Benton, Mathieu Taillefumier +5
is a celebrated example of a pyrochlore magnet with highly-frustrated, anisotropic exchange interactions. To date, attention has largely focused on its unusual, s…
DFT+DMFT calculations of the complex band and tunneling behavior for the transition metal monoxides MnO, FeO, CoO and NiO
Long Zhang, Peter Staar, Anton Kozhevnikov +4
We report complex band structure (CBS) calculations for the four late transition metal monoxides, MnO, FeO, CoO and NiO, in their paramagnetic phase. The CBS is obtained from densi…
A Bespoke Single-Band Hubbard Model Material
S. M. Griffin, P. Staar, T. C. Schulthess +2
The Hubbard model, which augments independent-electron band theory with a single parameter to describe electron-electron correlations, is widely regarded to be the `standard model'…
Two-particle correlations in a dynamic cluster approximation with continuous momentum dependence: Superconductivity in the 2D Hubbard model
Peter Staar, Thomas Maier, Thomas Schulthess
The DCA algortihm was recently introduced to extend the dynamic cluster approximation (DCA) with a continuous lattice self-energy in order to achieve better convergence with cl…
The Continuous-Pole-Expansion method to obtain spectra of electronic lattice models
Peter Staar, Bart Ydens, Anton Kozhevnikov +2
We present a new algorithm to analytically continue the self-energy of quantum many-body systems from Matsubara frequencies to the real axis. The method allows straightforward, una…
DCA: Dynamical Cluster Approximation with continuous lattice self-energy
Peter Staar, Thomas Maier, Thomas C. Schulthess
The dynamical cluster approximation (DCA) is a systematic extension beyond the single site approximation in dynamical mean field theory (DMFT), to include spatially non-local corre…