Scissors mode of an expanding Bose-Einstein condensate
Year: 2003
Authors: Modugno M., Modugno G., Roati G., Fort C., Inguscio M.
Autors Affiliation: Univ Florence, INFM, LENS, I-50019 Sesto Fiorentino, Italy; Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, Italy; Univ Trent, Dipartimento Fis, I-38050 Trento, Italy.
Abstract: We study the scissors mode of a free-expanding Bose-Einstein condensate. We find that the irrotational character of the superfluid flow within the condensate has dramatic consequences on the evolution of the scissors oscillation. After a short expansion the oscillation is amplified and distorted, while asymptotically it recovers its initial sinusoidal behavior, with an enhanced amplitude. We investigate this phenomenon by using a technique to excite the scissors mode in a condensate held in a magnetostatic potential.
Journal/Review: PHYSICAL REVIEW A
Volume: 67 (2) Pages from: 23608-1 to: 23608-4
KeyWords: Superfluidity; Vortices; Dynamics; Inertia; MomentDOI: 10.1103/PhysRevA.67.023608ImpactFactor: 2.589Citations: 16data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-10References taken from IsiWeb of Knowledge: (subscribers only)
