Rotating three-dimensional solitons in Bose-Einstein condensates with gravitylike attractive nonlocal interaction

Journal Article · Tue Jun 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.063617· OSTI ID:21439520

Maucher, F ^[1]; Skupin, S ^[1]; Shen, M ^[2]; Krolikowski, W ^[3]

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1. Max Planck Institute for the Physics of Complex Systems, D-01187 Dresden (Germany)
2. Department of Physics, Shanghai University, Shanghai 200444 (China)
3. Laser Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200 (Australia)

We study formation of rotating three-dimensional high-order solitons (azimuthons) in Bose Einstein condensate with attractive nonlocal nonlinear interaction. In particular, we demonstrate formation of toroidal rotating solitons and investigate their stability. We show that variational methods allow a very good approximation of such solutions and predict accurately the soliton rotation frequency. We also find that these rotating localized structures are very robust and persist even if the initial condensate conditions are rather far from the exact soliton solutions. Furthermore, the presence of repulsive contact interaction does not prevent the existence of those solutions, but allows one to control their rotation. We conjecture that self-trapped azimuthons are generic for condensates with attractive nonlocal interaction.

• OSTI ID: 21439520
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
APPROXIMATIONS
BOSE-EINSTEIN CONDENSATION
CALCULATION METHODS
CONTROL
INTERACTIONS
MATHEMATICAL SOLUTIONS
MOTION
NONLINEAR PROBLEMS
PHASE STABILITY
QUASI PARTICLES
ROTATION
SOLITONS
STABILITY
THREE-DIMENSIONAL CALCULATIONS
TRAPPING
VARIATIONAL METHODS