Dynamical Instability of a Doubly Quantized Vortex in a Bose-Einstein Condensate

ORAL

Abstract

Doubly quantized vortices were topologically imprinted in sodium condensates [1], and their time evolution was observed using a tomographical imaging technique. The dynamical instability of a doubly quantized vortex state in a condesate was directly confirmed by observing that a doulby quantized vortex core split into two singly quantized vortex cores [2]. The characteristic time scale of the splitting process was found to be longer at higher atom density. [1] A.E. Leanhardt, et.al., Phys. Rev. Lett. 89, 190403 (2002). [2] Y. Shin, et.al., Phys. Rev. Lett. 93, 160406 (2004).

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Authors

  • Yong-il Shin

  • Michele Saba

    • MIT

  • Mukund Vengalattore

    • Harvard University

  • Thomas Pasquini

  • Christian Sanner

  • Aaron Leanhardt

    • MIT

  • Mara Prentiss

    • Harvard University

  • David Pritchard

  • Wolfgang Ketterle

    • MIT