Remarks on the nonlinear Schrödinger equation with harmonic potential

نویسنده

  • Rémi Carles
چکیده

Bose-Einstein condensation is usually modeled by nonlinear Schrödinger equations with harmonic potential. We study the Cauchy problem for these equations. We show that the local problem can be treated as in the case with no potential. For the global problem, we establish an evolution law, which is the analogue of the pseudo-conformal conservation law for the nonlinear Schrödinger equation. With this evolution law, we give wave collapse criteria, as well as an upper for the blow up time. We finally give a lower bound for the blow up time in the semi-classical limit, with the physical scales.

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تاریخ انتشار 2008