Oscillations and interactions of dark and dark-bright solitons in Bose-Einstein condensates
arXiv:0804.0544 · doi:10.1038/nphys962
Abstract
Solitons are among the most distinguishing fundamental excitations in a wide range of non-linear systems such as water in narrow channels, high speed optical communication, molecular biology and astrophysics. Stabilized by a balance between spreading and focusing, solitons are wavepackets, which share some exceptional generic features like form-stability and particle-like properties. Ultra-cold quantum gases represent very pure and well-controlled non-linear systems, therefore offering unique possibilities to study soliton dynamics. Here we report on the first observation of long-lived dark and dark-bright solitons with lifetimes of up to several seconds as well as their dynamics in highly stable optically trapped Rb Bose-Einstein condensates. In particular, our detailed studies of dark and dark-bright soliton oscillations reveal the particle-like nature of these collective excitations for the first time. In addition, we discuss the collision between these two types of solitary excitations in Bose-Einstein condensates.
9 pages, 4 figures
References in corpus (5)
- Formation of bright matter-wave solitons during the collapse of Bose-Einstein condensates
- Experimental observation of oscillating and interacting matter wave dark solitons
- Magnetically tuned spin dynamics resonance
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Cited by in corpus (11)
- Experimental observation of oscillating and interacting matter wave dark solitons
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- Interaction of dark-bright solitons in two-component Bose-Einstein condensates
- Dynamics and modulation of ring dark soliton in 2D Bose-Einstein condensates with tunable interaction
- Solitons in Tonks-Girardeau gas with dipolar interactions
- Supersolitons: Solitonic excitations in atomic soliton chains
- Pulsating and persistent vector solitons in a Bose-Einstein condensate in a lattice upon phase separation instability
- Matter-wave dark solitons in a double-well potential
- Matter sound waves in two-component Bose-Einstein condensates
- Matter-Wave Solitons in the Presence of Collisional Inhomogeneities: Perturbation theory and the impact of derivative terms
- Dissipative solitons stabilized by a quantum Zeno-like effect