Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Panjab UniversityIN1.9k papers
- University of Illinois ChicagoUS1.9k papers
- Purdue University West LafayetteUS1.9k papers
- Centre National de la Recherche ScientifiqueFR1.8k papers
- Florida State UniversityUS1.8k papers
- Fermi National Accelerator LaboratoryUS1.8k papers
- University of RochesterUS1.7k papers
- University of California, RiversideUS1.7k papers
- University of VirginiaUS1.7k papers
- Brown UniversityUS1.7k papers
- Texas A&M UniversityUS1.7k papers
- University of KansasUS1.7k papers
15 papers · 2 filters
Destruction of Kondo effect in cubic heavy fermion compound Ce3Pd20Si6
J. Custers, K. -A. Lorenzer, M. Müller +9
How ground states of quantum matter transform between one another reveals deep insights into the mechanisms stabilizing them. Correspondingly, quantum phase transitions are explore…
Structural Phase Transitions of the Metal Oxide Perovskites SrTiO3, LaAlO3 and LaTiO3 Studied with a Screened Hybrid Functional
Fedwa El-Mellouhi, Edward N. Brothers, Melissa J. Lucero +2
We have investigated the structural phase transitions of the transition metal oxide perovskites SrTiO, LaAlO and LaTiO using the screened hybrid density functiona…
Non-perturbative stochastic method for driven spin-boson model
Peter P. Orth, Adilet Imambekov, Karyn Le Hur
We introduce and apply a numerically exact method for investigating the real-time dissipative dynamics of quantum impurities embedded in a macroscopic environment beyond the weak-c…
Hall effect in heavy-fermion metals
Sunil Nair, S. Wirth, S. Friedemann +3
The heavy fermion systems present a unique platform in which strong electronic correlations give rise to a host of novel, and often competing, electronic and magnetic ground states…
Electron Correlation and Spin Dynamics in Iron Pnictides and Chalcogenides
Rong Yu, Qimiao Si, Pallab Goswami +1
Superconductivity in the iron pnictides and chalcogenides is closely connected to a bad-metal normal state and a nearby antiferromagnetic order. Therefore, considerable attention h…
Orbital-selective Mott Phase in Multiorbital Models for Alkaline Iron Selenides K(1-x)Fe(2-y)Se2
Rong Yu, Qimiao Si
We study a multiorbital model for the alkaline iron selenides K(1-x)Fe(2-y)Se2 using a slave-spin method. With or without ordered vacancies, we identify a metal-to-Mott-insulator t…
N-electron Slater determinants from non-unitary canonical transformations of fermion operators
Carlos A. Jimenez-Hoyos, R. Rodriguez-Guzman, Gustavo E. Scuseria
Mean-field methods such as Hartree-Fock (HF) or Hartree-Fock-Bogoliubov (HFB) constitute the building blocks upon which more elaborate many-body theories are based on. The HF and H…
β-YbAlB4: a critical nodal metal
Aline Ramires, Piers Coleman, Andriy H. Nevidomskyy +1
We propose a model for the intrinsic quantum criticality of β-YbAlB4, in which a vortex in momentum space gives rise to a new type of Fermi surface singularity. The unquenched angu…
Comment on "Zeeman-Driven Lifshitz Transition: A Model for the Experimentally Observed Fermi-Surface Reconstruction in YbRh2Si2"
S. Friedemann, S. Paschen, C. Geibel +5
In Phys. Rev. Lett. 106, 137002 (2011), A. Hackl and M. Vojta have proposed to explain the quantum critical behavior of YbRh2Si2 in terms of a Zeeman-induced Lifshitz transition of…
Competing topological and Kondo insulator phases on a honeycomb lattice
Xiao-Yong Feng, Jianhui Dai, Chung-Hou Chung +1
We investigate the competition between the spin-orbit interaction of itinerant electrons and their Kondo coupling with local moments densely distributed on the honeycomb lattice. W…
Quantum critical scaling at a Bose-glass/superfluid transition: theory and experiment on a model quantum magnet
Rong Yu, Corneliu F. Miclea, Franziska Weickert +4
In this paper we investigate the quantum phase transition from magnetic Bose glass to magnetic Bose-Einstein condensation induced by a magnetic field in NiCl2.4SC(NH2)2 (dichloro-t…
Symmetry-projected variational approach for ground and excited states of the two-dimensional Hubbard model
R. Rodríguez-Guzmán, K. W. Schmid, Carlos A. Jiménez-Hoyos +1
We present a symmetry-projected configuration mixing scheme to describe ground and excited states, with well defined quantum numbers, of the two-dimensional Hubbard model with near…
U(1) Slave-spin theory and its application to Mott transition in a multi-orbital model for iron pnictides
Rong Yu, Qimiao Si
A U(1) slave-spin representation is introduced for multi-orbital Hubbard models. As with the form of L. de'Medici et al. (Phys. Rev. B 72, 205124 (2005)), this approach repre…
Projected Hartree-Fock Theory
Carlos A. Jimenez-Hoyos, Thomas M. Henderson, Takashi Tsuchimochi +1
Projected Hartree-Fock theory (PHF) has a long history in quantum chemistry. PHF is here understood as the variational determination of an N-electron broken symmetry Slater determi…
Statistical distribution of the electric field driven switching of the Verwey state in Fe3O4
A. A. Fursina, R. G. S. Sofin, I. V. Shvets +1
The insulating state of magnetite (FeO) can be disrupted by a sufficiently large dc electric field. Pulsed measurements are used to examine the kinetics of this transit…