Abstract
We consider the dynamics of three-dimensional Bose–Einstein condensates of cold atoms in the presence of internal dynamical counter-pressure that may arise due to three-body atomic collisions. We demonstrate that, in the corresponding phenomenological approach, in addition to the condensate density losses, these three-body interactions may lead to an internal pressure resulting in a repulsive potential in the condensate. This repulsion, being nonlocal and expressed with a specific form of the integral dependence on the condensate density, similar to the manifestation of the Coulomb forces in charged systems, can determine the entire condensate evolution. We find that these effects can inhibit the collapse of a self-attracting condensate and even cause its explosion, and identify the corresponding conditions numerically.
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 callMore From: Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena
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.
