Stability of Dark Solitons in Three Dimensional Dipolar Bose-Einstein Condensates
Abstract
The dynamical stability of dark solitons in dipolar Bose-Einstein condensates is studied. For standard short-range interacting condensates, dark solitons are unstable against transverse excitations in two and three dimensions. On the contrary, due to its nonlocal character, the dipolar interaction allows for stable 3D stationary dark solitons, opening a qualitatively novel scenario in nonlinear atom optics. We discuss in detail the conditions to achieve this stability, which demand the use of an additional optical lattice, and the stability regimes.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2008
- DOI:
- 10.1103/PhysRevLett.101.210402
- arXiv:
- arXiv:0712.3655
- Bibcode:
- 2008PhRvL.101u0402N
- Keywords:
-
- 03.75.Lm;
- 05.30.Jp;
- 05.45.Yv;
- Tunneling Josephson effect Bose-Einstein condensates in periodic potentials solitons vortices and topological excitations;
- Boson systems;
- Solitons;
- Condensed Matter - Other Condensed Matter
- E-Print:
- 4 pages, 3 eps figures