193 citations · 669 across the 8 of their papers we have counts for
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Relaxation of a one-dimensional Mott insulator after an interaction quench
Marcus Kollar, Martin Eckstein
We obtain the exact time evolution for the one-dimensional integrable fermionic 1/r Hubbard model after a sudden change of its interaction parameter, starting from either a metalli…
Nonthermal steady states after an interaction quench in the Falicov-Kimball model
Martin Eckstein, Marcus Kollar
We present the exact solution of the Falicov-Kimball model after a sudden change of its interaction parameter using non-equilibrium dynamical mean-field theory. For different inter…
Spin transport in Heisenberg antiferromagnets
Michael Sentef, Marcus Kollar, Arno P. Kampf
We analyze spin transport in insulating antiferromagnets described by the XXZ Heisenberg model in two and three dimensions. Spin currents can be generated by a magnetic-field gradi…
Momentum-resolved spectral functions of SrVO calculated by LDA+DMFT
I. A. Nekrasov, K. Held, G. Keller +6
LDA+DMFT, the merger of density functional theory in the local density approximation and dynamical mean-field theory, has been mostly employed to calculate k-integrated spectra acc…
Green functions for nearest- and next-nearest-neighbor hopping on the Bethe lattice
M. Kollar, M. Eckstein, K. Byczuk +8
We calculate the local Green function for a quantum-mechanical particle with hopping between nearest and next-nearest neighbors on the Bethe lattice, where the on-site energies may…
Hopping on the Bethe lattice: Exact results for densities of states and dynamical mean-field theory
Martin Eckstein, Marcus Kollar, Krzysztof Byczuk +1
We derive an operator identity which relates tight-binding Hamiltonians with arbitrary hopping on the Bethe lattice to the Hamiltonian with nearest-neighbor hopping. This provides…