Hannover 2013 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 56: Poster III
Q 56.4: Poster
Donnerstag, 21. März 2013, 16:00–18:30, Empore Lichthof
The Multi-Layer Multi-Configuration Time-Dependent Hartree Method for Ultra-Cold Bosons — •Sven Krönke1,2, Lushuai Cao1,2, Oriol Vendrell2,3, and Peter Schmelcher1,2 — 1Zentrum für Optische Quantentechnologien, Universität Hamburg, Germany — 2The Hamburg Centre for Ultrafast Imaging, Germany — 3Center for Free-Electron Laser Science, DESY, Hamburg, Germany
We develop and apply the multi-layer multi-configuration time-dependent Hartree method for bosons (ML-MCTDHB), which represents a highly flexible tool for investigating the quantum many-body dynamics of ultra-cold bosonic multi-species systems out of equilibrium in arbitrary dimensions.
Being an ab initio method for solving the time-dependent Schrödinger equation, ML-MCTDHB takes all correlations into account. The multi-layer feature of ML-MCTDHB allows for tailoring the wave function ansatz in order to describe intra- and inter-species correlations accurately and efficiently. To show the beneficial scaling and the efficiency of the method, we explore the correlated dynamics of three species tunneling in a double well trap. We demonstrate and analyze in detail the build up of inter- and intra-species correlations in the course of the quantum dynamics as well as signatures of equilibration.