680 citations · 1.7k across the 21 of their papers we have counts for
9 papers · 1 filter
Evaluation of time-dependent correlators after a local quench in iPEPS: hole motion in the t-J model
C. Hubig, A. Bohrdt, M. Knap +2
Infinite projected entangled pair states (iPEPS) provide a convenient variational description of infinite, translationally-invariant two-dimensional quantum states. However, the si…
Open quantum systems in thermal non-ergodic environments
Carlos A. Parra-Murillo, Max Bramberger, Claudius Hubig +1
The dynamics of an open system crucially depends on the correlation function of its environment, . We show that for thermal non-Harmonic environments may not decay…
Absence of superconductivity in the pure two-dimensional Hubbard model
Mingpu Qin, Chia-Min Chung, Hao Shi +5
We study the superconducting pairing correlations in the ground state of the doped Hubbard model -- in its original form without hopping beyond nearest neighbor or other perturbing…
Imaginary-time matrix product state impurity solver in a real material calculation: Spin-orbit coupling in SrRuO
Nils-Oliver Linden, Manuel Zingl, Claudius Hubig +2
Using an imaginary-time matrix-product state (MPS) based quantum impurity solver we perform a realistic dynamical mean-field theory (DMFT) calculation combined with density functio…
Gaussian time dependent variational principle for the Bose-Hubbard model
Tommaso Guaita, Lucas Hackl, Tao Shi +3
We systematically extend Bogoliubov theory beyond the mean field approximation of the Bose-Hubbard model in the superfluid phase. Our approach is based on the time dependent variat…
Use and implementation of autodifferentiation in tensor network methods with complex scalars
Claudius Hubig
Following the recent preprints arXiv:1903.09650 and arXiv:1906.04654 we comment on the feasibility of implementation of autodifferentiation in standard tensor network toolkits by b…