Excitation modes of bright matter-wave solitons

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Abstract

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
Volume123
Issue number12
Early online date17 Sep 2019
DOIs
Publication statusPublished - 17 Sep 2019

Keywords

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

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