630 citations · 3.3k across the 41 of their papers we have counts for
7 papers · 1 filter
Doped NiO: the Mottness of a charge transfer insulator
Friederike Wrobel, Hyowon Park, Changhee Sohn +9
The evolution of the electronic structures of strongly correlated insulators with doping has long been a central fundamental question in condensed matter physics; it is also of gre…
Itinerant Antiferromagnetism in RuO
T. Berlijn, P. C. Snijders, O. Delaire +9
Bulk rutile RuO has long been considered a Pauli paramagnet. Here we report that RuO exhibits a hitherto undetected lattice distortion below approximately 900 K. The distor…
Systematic reduction of sign errors in many-body calculations of atoms and molecules
Michal Bajdich, Murilo L. Tiago, Randolph Q. Hood +2
The self-healing diffusion Monte Carlo algorithm (SHDMC) [Phys. Rev. B {\bf 79}, 195117 (2009), {\it ibid.} {\bf 80}, 125110 (2009)] is shown to be an accurate and robust method fo…
Self-healing diffusion quantum Monte Carlo algorithms: methods for direct reduction of the fermion sign error in electronic structure calculations
Fernando A. Reboredo, Randolph Q. Hood, Paul R. C. Kent
We develop a formalism and present an algorithm for optimization of the trial wave-function used in fixed-node diffusion quantum Monte Carlo (DMC) methods. We take advantage of a b…
Charge Density Wave Driven Ferromagnetism in the Periodic Anderson Model
M. A. Majidi, D. G. S. P. Doluweera, B. Moritz +3
We demonstrate the existence of ferromagnetism in the Periodic Anderson Model (PAM) at conduction-band filling near a quarter. We show that this ferromagnetism is not supported by…
Pseudogap and antiferromagnetic correlations in the Hubbard model
Alexandru Macridin, Mark Jarrell, Thomas Maier +2
Using the dynamical cluster approximation and quantum monte carlo we calculate the single-particle spectra of the Hubbard model with next-nearest neighbor hopping . In the unde…
Efficient calculation of the antiferromagnetic phase diagram of the 3D Hubbard model
P. R. C. Kent, M. Jarrell, T. A. Maier +1
The Dynamical Cluster Approximation with Betts clusters is used to calculate the antiferromagnetic phase diagram of the 3D Hubbard model at half filling. Betts clusters are a set o…