Stability of multiquantum vortices in dilute Bose-Einstein condensates

T. P. Simula, S. M M Virtanen, M. M. Salomaa

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Abstract

A study was conducted on multiply quantized vortices and their energetic stability in dilute Bose-Einstein condensates using the Bogoliubov approximation. Energies of different multiquantum vortex configurations were computed and compared with each other in order to find the globally stable minimum-energy states. It was shown that a combination of a pinning potential and external rotation of the system facilitates the existence of multiply quantized vortex states in harmonically trapped BECs.

Original languageEnglish
JournalPhysical Review A
Volume65
Issue number3 B
Publication statusPublished - Mar 2002
Externally publishedYes

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