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Predicting spinor condensate dynamics from simple principles

M. Moreno-Cardoner·J. Mur-Petit·M. Guilleumas·A. Polls·A. Sanpera·M. Lewenstein
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Abstract

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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M. Moreno-Cardoner, J. Mur-Petit, M. Guilleumas, A. Polls, A. Sanpera, M. Lewenstein. 2007-07-16. Predicting spinor condensate dynamics from simple principles. https://doi.org/10.1103/physrevlett.99.020404

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