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Experimental observation of oscillating and interacting matter wave dark solitons
  • A Weller
  • JP Ronzheimer
  • C Gross
  • J Esteve
  • MK Oberthaler
  • DJ Frantzeskakis
  • G Theocharis
  • PG Kevrekidis, University of Massachusetts - Amherst
Publication Date
We report on the generation, subsequent oscillation and interaction of a pair of matter-wave dark solitons. These are created by releasing a Bose-Einstein condensate from a double well potential into a harmonic trap in the crossover regime between one dimension and three dimensions. Multiple oscillations and collisions of the solitons are observed, in quantitative agreement with simulations of the Gross-Pitaevskii equation. An effective particle picture is developed and confirms that the deviation of the observed oscillation frequencies from the asymptotic prediction νz/√2, where νz is the longitudinal trapping frequency, results from the dimensionality of the system and the soliton interactions.
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Citation Information
A Weller, JP Ronzheimer, C Gross, J Esteve, et al.. "Experimental observation of oscillating and interacting matter wave dark solitons" PHYSICAL REVIEW LETTERS Vol. 101 Iss. 13 (2008)
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