Excitation modes of bright matter-wave solitons

Andrea Di Carli, Craig D. Colquhoun, Grant Henderson, Stuart Flannigan, Gian-Luca Oppo, Andrew J. Daley, Stefan Kuhr, Elmar Haller

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We experimentally study the excitation modes of bright matter-wave solitons in a quasi-one-dimensional geometry. The solitons are created by quenching the interactions of a Bose-Einstein condensate of cesium atoms from repulsive to attractive in combination with a rapid reduction of the longitudinal confinement. A deliberate mismatch of quench parameters allows for the excitation of breathing modes of the emerging soliton and for the determination of its breathing frequency as a function of atom number and confinement. In addition, we observe signatures of higher-order solitons and the splitting of the wave packet after the quench. Our experimental results are compared to analytical predictions and to numerical simulations of the one-dimensional Gross-Pitaevskii equation.
Original languageEnglish
Article number123602
Number of pages5
JournalPhysical Review Letters
Issue number12
Early online date17 Sept 2019
Publication statusPublished - 17 Sept 2019


  • bright matter-wave solitons
  • excitation modes
  • Bose-Einstein


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