Predicting spinor condensate dynamics from simple principles

Details Predicting spinor condensate dynamics from simple principles Predicting spinor condensate dynamics from simple principles

2006-11-14

arxiv.org/abs/cond-mat/0611379v3

Phys. Rev. Lett. 99, 020404 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures. v3: matches version appeared in PRL

Scientific paper

10.1103/PhysRevLett.99.020404

We study the spin dynamics of quasi-one-dimensional F=1 condensates both at zero and finite temperatures for arbitrary initial spin configurations. The rich dynamical evolution exhibited by these non-linear systems is explained by surprisingly simple principles: minimization of energy at zero temperature, and maximization of entropy at high temperature. Our analytical results for the homogeneous case are corroborated by numerical simulations for confined condensates in a wide variety of initial conditions. These predictions compare qualitatively well with recent experimental observations and can, therefore, serve as a guidance for on-going experiments.

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