Abstract

We study the dynamics of a Bose-Einstein condensatewavepacket trapped in an optical lattice. In the tight-bindinglimit, the system maps onto a discrete nonlinear Schrödingerequation. Using a collective coordinate approximation, weinvestigate different dynamical regimes: diffusive (in whichthe boson wavepacket spreads out), self-trapped (with aself-induced pinning), breathing (where the centre of mass ofthe wavepacket moves with an oscillating width), and solitonic(in which the wavepacket shape is exactly preserved duringthe dynamics).

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.