Colloquium: Multiconfigurational time-dependent Hartree approaches for indistinguishable particles

AUJ Lode, C Lévêque, LB Madsen, AI Streltsov… - Reviews of Modern …, 2020 - APS
In this Colloquium, the wave-function-based multiconfigurational time-dependent Hartree
approaches to the dynamics of indistinguishable particles (MCTDH-F for fermions and …

MCTDH-X: The multiconfigurational time-dependent Hartree method for indistinguishable particles software

R Lin, P Molignini, L Papariello… - Quantum Science …, 2020 - iopscience.iop.org
We introduce and describe the multiconfigurational time-depenent Hartree for
indistinguishable particles (MCTDH-X) software, which is hosted, documented, and …

Negative-quench-induced excitation dynamics for ultracold bosons in one-dimensional lattices

SI Mistakidis, L Cao, P Schmelcher - Physical Review A, 2015 - APS
The nonequilibrium dynamics following a quench of strongly repulsive bosonic ensembles
in one-dimensional finite lattices is investigated by employing interaction quenches and/or a …

Correlated tunneling dynamics of an ultracold Fermi-Fermi mixture confined in a double well

J Erdmann, SI Mistakidis, P Schmelcher - Physical Review A, 2018 - APS
We unravel the correlated tunneling dynamics of a mass imbalanced few-body Fermi-Fermi
mixture upon quenching the tilt of a double well. The nonequilibrium dynamics of both …

Time-dependent restricted-active-space self-consistent-field theory for bosonic many-body systems

C Lévêque, LB Madsen - New Journal of Physics, 2017 - iopscience.iop.org
We develop an ab initio time-dependent wavefunction based theory for the description of a
many-body system of cold interacting bosons. Like the multi-configurational time-dependent …

Relaxation, chaos, and thermalization in a three-mode model of a Bose–Einstein condensate

MA Garcia-March, S van Frank, M Bonneau… - New Journal of …, 2018 - iopscience.iop.org
We study the complex quantum dynamics of a system of many interacting atoms in an
elongated anharmonic trap. The system is initially in a Bose–Einstein condensed state, well …

Entanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons

F Theel, K Keiler, SI Mistakidis… - New Journal of …, 2020 - iopscience.iop.org
We unravel the correlated tunneling dynamics of an impurity trapped in a double well and
interacting repulsively with a majority species of lattice trapped bosons. Upon quenching the …

Mode coupling of interaction quenched ultracold few-boson ensembles in periodically driven lattices

SI Mistakidis, P Schmelcher - Physical Review A, 2017 - APS
The out-of-equilibrium dynamics of interaction quenched finite ultracold bosonic ensembles
in periodically driven one-dimensional optical lattices is investigated. It is shown that …

Center-of-mass motion as a sensitive convergence test for variational multimode quantum dynamics

JG Cosme, C Weiss, J Brand - Physical Review A, 2016 - APS
Multimode expansions in computational quantum dynamics promise convergence toward
exact results upon increasing the number of modes. Convergence is difficult to ascertain in …

Many-body tunneling dynamics of Bose-Einstein condensates and vortex states in two spatial dimensions

R Beinke, S Klaiman, LS Cederbaum, AI Streltsov… - Physical Review A, 2015 - APS
In this work, we study the out-of-equilibrium many-body tunneling dynamics of a Bose-
Einstein condensate in a two-dimensional radial double well. We investigate the impact of …