155 citations · 390 across the 6 of their papers we have counts for
9 papers · 1 filter
Oscillations and interactions of dark and dark-bright solitons in Bose-Einstein condensates
C. Becker, S. Stellmer, P. Soltan-Panahi +6
Solitons are among the most distinguishing fundamental excitations in a wide range of non-linear systems such as water in narrow channels, high speed optical communication, molecul…
Self-Trapping of Bosons and Fermions in Optical Lattices
Dirk-Sören Lühmann, Kai Bongs, Klaus Sengstock +1
We theoretically investigate the enhanced localization of bosonic atoms by fermionic atoms in three-dimensional optical lattices and find a self-trapping of the bosons for attracti…
Localization and delocalization of ultracold bosonic atoms in finite optical lattices
Dirk-Sören Lühmann, Kai Bongs, Klaus Sengstock +1
We study bosonic atoms in small optical lattices by exact diagonalization and observe a striking similarity to the superfluid to Mott insulator transition in macroscopic systems. T…
Heteronuclear molecules in an optical lattice: Theory and experiment
Frank Deuretzbacher, Kim Plassmeier, Daniela Pfannkuche +5
We study properties of two different atoms at a single optical lattice site at a heteronuclear atomic Feshbach resonance. We calculate the energy spectrum, the efficiency of rf ass…
Magnetically tuned spin dynamics resonance
J. Kronjäger, C. Becker, P. Navez +2
We present the experimental observation of a magnetically tuned resonance phenomenon resulting from spin mixing dynamics of ultracold atomic gases. In particular we study the magne…
Evolution from a Bose-Einstein condensate to a Tonks-Girardeau gas: An exact diagonalization study
Frank Deuretzbacher, Kai Bongs, Klaus Sengstock +1
We study ground state properties of spinless, quasi one-dimensional bosons which are confined in a harmonic trap and interact via repulsive delta-potentials. We use the exact diago…