Stable vortex dipoles in nonrotating Bose-Einstein condensates

Journal Article · Mon Dec 01 04:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.68.063609· OSTI ID:20640519

Crasovan, Lucian-Cornel; Torres, Juan P; Torner, Lluis ^[1]; Vekslerchik, Vadym; Perez-Garcia, Victor M ^[2]; Mihalache, Dumitru ^[1]

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1. ICFO-Institut de Ciencies Fotoniques, and Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, ES 08034 Barcelona (Spain)
2. Departamento de Matematicas, ETSI Industriales, Universidad de Castilla-La Mancha, 13071 Ciudad Real (Spain)

We find stable families of vortex dipoles in nonrotating Bose-Einstein condensates. The vortex dipoles correspond to topological excited collective states of the condensed atoms. They exist and are dynamically and structurally stable for a broad range of parameters. We show that they can be generated by phase-imprinting techniques on the ground state of condensates.

• OSTI ID: 20640519
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 68; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
DIPOLES
EXCITED STATES
GROUND STATES
TOPOLOGY
VORTICES