Dynamics of bubbles in a two-component Bose-Einstein condensate

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.033602· OSTI ID:21541330

Sasaki, Kazuki; Suzuki, Naoya; Saito, Hiroki ^[1]

---

1. Department of Engineering Science, University of Electro-Communications, Tokyo 182-8585 (Japan)

The dynamics of a phase-separated two-component Bose-Einstein condensate are investigated, in which a bubble of one component moves through the other component. Numerical simulations of the Gross-Pitaevskii equation reveal a variety of dynamics associated with the creation of quantized vortices. In two dimensions, a circular bubble deforms into an ellipse and splits into fragments with vortices, which undergo the Magnus effect. The Benard-von Karman vortex street is also generated. In three dimensions, a spherical bubble deforms into toruses with vortex rings. When two rings are formed, they exhibit leapfrogging dynamics.

• OSTI ID: 21541330
• Journal Information: Physical Review. A, Vol. 83, Issue 3; Other Information: DOI: 10.1103/PhysRevA.83.033602; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
BOSE-EINSTEIN CONDENSATION
BUBBLES
COMPUTERIZED SIMULATION
EQUATIONS
QUANTIZATION
RINGS
SPHERICAL CONFIGURATION
VORTICES
CONFIGURATION
SIMULATION