128 citations · 2.3k across the 102 of their papers we have counts for
9 papers · 1 filter
Mean-field transport of a Bose-Einstein condensate
Samy Mailoud Sekkouri, Sandro Wimberger
The expansion of an initially confined Bose-Einstein condensate into either free space or a tilted optical lattice is investigated in a mean-field approach. The effect of the inter…
Asymmetric many-body loss in a bosonic double well
Zakari Denis, Antonio Tiene, Luca Salasnich +1
A Bose gas in a double well is investigated in the presence of single-particle, two-body and three-body asymmetric loss. The loss induces an interesting decay behavior of the total…
Hamiltonian ratchets with ultra-cold atoms
Jiating Ni, Siamak Dadras, Wa Kun Lam +4
Quantum-resonance ratchets have been realized over the last ten years for the production of directed currents of atoms. These non-dissipative systems are based on the interaction o…
Models for a multimode bosonic tunneling junction
David Fischer, Sandro Wimberger
We discuss the relaxation dynamics for a bosonic tunneling junction with two modes in the central potential well. We use a master equation description for ultracold bosons tunnelin…
Two-dimensional simulation of quantum reflection
E. Galiffi, C. Sünderhauf, M. DeKieviet +1
A propagation method for the scattering of a quantum wave packet from a potential surface is presented. It is used to model the quantum reflection of single atoms from a corrugated…
Superadiabatic driving of a three-level quantum system
Marcus Theisen, Francesco Petiziol, Stefano Carretta +2
We study superadiabatic quantum control of a three-level quantum system whose energy spectrum exhibits multiple avoided crossings. In particular, we investigate the possibility of…