Formation and Dynamics of Many-Boson Fragmented States in One-Dimensional Attractive Ultracold Gases
Abstract
The dynamics of attractive ultracold bosonic clouds in one dimension is studied by solving the many-particle time-dependent Schrödinger equation. The initially coherent wave packet can dynamically dissociate into two parts when its energy exceeds a threshold value. Noticeably, the time-dependent Gross-Pitaevskii theory does not show up the splitting. We call the split object fragmenton. It possesses remarkable properties; in particular, it is macroscopically fragmented. A simple static model predicts the existence of fragmented states responsible for the formation and dynamics of fragmentons.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 2008
- DOI:
- 10.1103/PhysRevLett.100.130401
- Bibcode:
- 2008PhRvL.100m0401S
- Keywords:
-
- 03.75.Kk;
- 03.65.-w;
- 03.75.Nt;
- 05.30.Jp;
- Dynamic properties of condensates;
- collective and hydrodynamic excitations superfluid flow;
- Quantum mechanics;
- Other Bose-Einstein condensation phenomena;
- Boson systems