Excitation Modes of Bright Matter-Wave Solitons

被引：46

作者：

Di Carli, Andrea ^{[1
]}

Colquhoun, Craig D.

Henderson, Grant

Flannigan, Stuart

Oppo, Gian-Luca

Daley, Andrew J.

Kuhr, Stefan

Haller, Elmar

机构：

[1] Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

DYNAMICS;

D O I：

10.1103/PhysRevLett.123.123602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：5

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