New theoretical approaches for correlated systems in nonequilibrium
M Eckstein, A Hackl, S Kehrein, M Kollar… - The European Physical …, 2009 - Springer
We review recent developments in the theory of interacting quantum many-particle systems
that are not in equilibrium. We focus mainly on the nonequilibrium generalizations of the flow …
that are not in equilibrium. We focus mainly on the nonequilibrium generalizations of the flow …
Correlated bosons on a lattice: Dynamical mean-field theory for Bose-Einstein condensed and normal phases
K Byczuk, D Vollhardt - Physical Review B—Condensed Matter and Materials …, 2008 - APS
We formulate a bosonic dynamical mean-field theory (B-DMFT) which provides a
comprehensive, thermodynamically consistent framework for the theoretical investigation of …
comprehensive, thermodynamically consistent framework for the theoretical investigation of …
Phase separation in the particle-hole asymmetric Hubbard model
M Eckstein, M Kollar, M Potthoff, D Vollhardt - Physical Review B—Condensed …, 2007 - APS
The paramagnetic phase diagram of the Hubbard model with nearest-neighbor and next-
nearest-neighbor (NNN) hopping on the Bethe lattice is computed at half-filling and in the …
nearest-neighbor (NNN) hopping on the Bethe lattice is computed at half-filling and in the …
Anderson-Hubbard model with box disorder: Statistical dynamical mean-field theory investigation
D Semmler, K Byczuk, W Hofstetter - Physical Review B—Condensed Matter …, 2011 - APS
Strongly correlated electrons with box disorder in high-dimensional lattices are investigated.
We apply a statistical dynamical mean-field theory that treats local correlations …
We apply a statistical dynamical mean-field theory that treats local correlations …
Mott-Hubbard and Anderson metal-insulator transitions in correlated lattice fermions with binary disorder
D Semmler, K Byczuk, W Hofstetter - Physical Review B—Condensed Matter …, 2010 - APS
Strongly correlated fermions in a crystal or in an optical lattice in the presence of binary-alloy
disorder are investigated. We employ the statistical dynamical mean-field theory, which …
disorder are investigated. We employ the statistical dynamical mean-field theory, which …
Insulating behavior with spin and charge order in the ionic Hubbard model
K Byczuk, M Sekania, W Hofstetter, AP Kampf - Physical Review B …, 2009 - APS
Paramagnetic solutions of the ionic Hubbard model at half-filling in dimensions D> 2
indicate that the band and the Mott insulator phases are separated by a metallic phase. We …
indicate that the band and the Mott insulator phases are separated by a metallic phase. We …
Orbital-selective Mott transitions in a doped two-band Hubbard model with crystal field splitting
E Jakobi, N Blümer, P van Dongen - Physical Review B—Condensed Matter …, 2013 - APS
We investigate the effects of crystal field splitting in a doped two-band Hubbard model with
different bandwidths within dynamical mean-field theory (DMFT), using a quantum Monte …
different bandwidths within dynamical mean-field theory (DMFT), using a quantum Monte …
Mott transitions in the half-filled SU(2) symmetric Hubbard model
N Blümer, EV Gorelik - Physical Review B—Condensed Matter and Materials …, 2013 - APS
The Hubbard model with large orbital degeneracy has recently gained relevance in the
context of ultracold earth alkali-like atoms. We compute its static properties in the SU (2 M) …
context of ultracold earth alkali-like atoms. We compute its static properties in the SU (2 M) …
[HTML][HTML] Optimization of electron transmission on a 1D lattice
Finding optimal multi-layer heterostructure configurations that result in desired current–
voltage characteristics requires physical control of electron scattering processes. It is shown …
voltage characteristics requires physical control of electron scattering processes. It is shown …
Localization of correlated fermions in optical lattices with speckle disorder
D Semmler, J Wernsdorfer, U Bissbort, K Byczuk… - Physical Review B …, 2010 - APS
Strongly correlated fermions in three-and two-dimensional optical lattices with
experimentally realistic speckle disorder are investigated. We extend and apply the …
experimentally realistic speckle disorder are investigated. We extend and apply the …