Portal de Periódicos da CAPES

Excitation Modes of Bright Matter-Wave Solitons

2019; American Physical Society; Volume: 123; Issue: 12 Linguagem: Inglês

10.1103/physrevlett.123.123602

1092-0145

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

Strong Light-Matter Interactions

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.