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Use of Surface-Wave Spectroscopy to Characterize Tilt Modes of a Vortex in a Bose-Einstein Condensate

Published

Author(s)

P C. Haljan, B P. Anderson, Ian R. Coddington, Eric A. Cornell

Abstract

A vortex in a condensate in a nonspherical trapping potential will in general experience a torque. The torque will induce tilting of the direction of the vortex axis. We observe this behavior experimentally and show that by applying small distortions to the trapping potential, we can control the tilting behavior. By suppressing vortex tilt, we have been able to hold the vortex axis along the line of sight for up to 15 sec. Alternatively, we can induce a 180 tilt, effectively reversing the charge on the vortex as observed in the lab frame. We characterize the vortex nondestructively with a surface-wave spectroscopic technique.
Citation
Physical Review Letters
Volume
86
Issue
No. 14

Keywords

Bose-Einstein condensate, vortices

Citation

Haljan, P. , Anderson, B. , Coddington, I. and Cornell, E. (2001), Use of Surface-Wave Spectroscopy to Characterize Tilt Modes of a Vortex in a Bose-Einstein Condensate, Physical Review Letters (Accessed April 17, 2024)
Created March 31, 2001, Updated October 12, 2021