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Comment on “Phase Diagram of a Disordered Boson Hubbard Model in Two Dimensions”
Superfluid mott insulation bose glass monte carlo simulation
2014/12/20
In a recent Letter [1] (see also [2]) the authors presented numerical evidence supporting an idea of a direct transition between the superfluid (SF) and Mott insulating (MI) phases in the disordered B...
The Fermi–Hubbard model at unitarity
Simulated rare appeal screw Fermi gas the thermodynamic functions
2014/12/20
We simulate the dilute attractive Fermi–Hubbard model in the unitarity regime using a diagrammatic determinant Monte Carlo (MC) algorithm with worm-type updates. We obtain the dependence of the critic...
Phase diagram and thermodynamics of the three-dimensional Bose-Hubbard model
Quantum monte carlo simulation 3 d space
2014/12/20
We report results of quantum Monte Carlo simulations of the Bose-Hubbard model in three dimensions. Critical parameters for the superfluid-to-Mott-insulator transition are determined with significantl...
Monte Carlo study of the two-dimensional Bose-Hubbard model
The most promising optical lattices ultracold gas condensate system quantum simulator
2014/12/19
One of the most promising applications of ultracold gases in optical lattices is the possibility to use them as quantum emulators of more complex condensed matter systems. We provide benchmark calcula...
Phase diagram of the disordered Bose-Hubbard model
Disordered phase diagram the three dimensional Bose - Hubbard model inclusions superfluids
2014/12/19
We establish the phase diagram of the disordered three-dimensional Bose-Hubbard model at unity filling which has been controversial for many years. The theorem of inclusions, proven by Pollet et al. [...
Exact diagonalization of the Hubbard model on graphics processing units
Hubbard model exact diagonalization GPU CUDA
2012/4/16
We solve the Hubbard model with the exact diagonalization method on a graphics processing unit (GPU). We benchmark our GPU program against a sequential CPU code by using the Lanczos algorithm to solve...
Evaluation of High Order Terms for the Hubbard Model in the Strong-coupling Limit
for the Hubbard Model High Order Terms the Strong-coupling Limit Strongly Correlated Electrons
2011/6/24
Evaluation of High Order Terms for the Hubbard Model in the Strong-coupling Limit.
Evaluation of High Order Terms for the Hubbard Model in the Strong-coupling Limit
High Order Terms the Hubbard Model Strong-coupling
2011/6/24
The ground-state energy of the Hubbard model on a Bethe lattice with infinite connectivity at half filling is calculated for the insulating phase. Using Kohn抯 transformation to derive an effective Ham...
Universal Luttinger Liquid Relations in the 1D Hubbard Model
Luttinger Liquid Relations 1D Hubbard Model Strongly Correlated Electrons
2011/6/2
Abstract: We study the 1D extended Hubbard model with a weak repulsive short-range interaction in the non-half-filled band case, using non-perturbative Renormalization Group methods and Ward Identitie...
Transport and Spectra in the Half-filled Hubbard Model: A Dynamical Mean Field Study
Hubbard model dynamical mean field theory iterated per-turbation theory optical conductivity hysteresis
2010/11/23
We study the issues of scaling and universality in spectral and trans-port properties of the infinite dimensional particle–hole symmetric (half–filled) Hubbard model within dynamical mean field theory...
Twisted Hubbard Model for Sr2IrO4: Magnetism and Possible High Temperature Superconductivity
Twisted Hubbard Model for Sr2IrO4 Magnetism Possible High Temperature Superconductivity
2010/11/19
Sr2IrO4 has been suggested as a Mott insulator from a single Jeff = 1/2 band, similar to the
cuprates. However this picture is complicated by the measured large magnetic anisotropy and
ferromagnetis...
Orbital Order, Metal Insulator Transition, and Magnetoresistance-Effect in the two-orbital Hubbard model
Orbital Order Metal Insulator Transition Magnetoresistance-Effect
2010/11/11
We study the effects of temperature and magnetic field on a two-orbital Hubbard model within
dynamical mean field theory. We focus on the quarter filled system, which is a special point in the phase ...
Thermal phase transitions of supersolids in the extended Bose-Hubbard model
Thermal phase transitions extended Bose-Hubbard model
2010/11/5
We investigate numerically the finite-temperature phase diagrams of the extended Bose-Hubbard
model in a two-dimensional square lattice. In particular, we focus on the melting of supersolid
phases o...
Reply to "Comment on `Quenches in quantum many-body systems: One-dimensional Bose-Hubbard model reexamined' ''
Quenches in quantum many-body systems One-dimensional Bose-Hubbard model
2010/11/2
In his Comment [see preceding Comment, Phys. Rev. A 82, 037601 (2010)] on the paper by Roux [Phys.Rev. A 79, 021608(R) (2009)], Rigol argued that the energy distribution after a quench is not related ...
Hidden XY structure of the bond-charge Hubbard model
Hidden XY structure bond-charge Hubbard model
2010/9/25
The repulsive one-dimensional Hubbard model with bond-charge interaction (HBC) in the superconducting regime is mapped onto the spin-1/2 XY model with transverse field. We calculate correlations and p...