%0 Journal Article %1 arXiv:0804.0544 %A Becker, C. %A Stellmer, S. %A Soltan-Panahi, P. %A Dörscher, S. %A Baumert, M. %A Richter, E.-M. %A Kronjäger, J. %A Bongs, K. %A Sengstock, K. %D 2008 %K %T Oscillations and interactions of dark and dark-bright solitons in Bose-Einstein condensates %U http://arxiv.org/pdf/0804.0544 %X 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 $^87$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.

@article{arXiv:0804.0544, 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 $^{87}$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.}, added-at = {2010-05-31T12:31:19.000+0200}, author = {Becker, C. and Stellmer, S. and Soltan-Panahi, P. and Dörscher, S. and Baumert, M. and Richter, E.-M. and Kronjäger, J. and Bongs, K. and Sengstock, K.}, biburl = {https://www.bibsonomy.org/bibtex/2a284b5974f3027c2e8d9f91e3c097282/tobiasgt79}, e-print = {arXiv:0804.0544}, interhash = {5cf1bfca7e6d598d1343570f0246ce5f}, intrahash = {a284b5974f3027c2e8d9f91e3c097282}, keywords = {}, month = {4}, timestamp = {2010-05-31T12:31:19.000+0200}, title = {Oscillations and interactions of dark and dark-bright solitons in Bose-Einstein condensates}, url = {http://arxiv.org/pdf/0804.0544}, year = 2008 }