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首页> 外文期刊>Discrete and continuous dynamical systems >ON THE CAUCHY PROBLEM FOR NONLINEAR SCHROEDINGER EQUATIONS WITH ROTATION
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ON THE CAUCHY PROBLEM FOR NONLINEAR SCHROEDINGER EQUATIONS WITH ROTATION

机译:带旋转的非线性Schedederer方程的Cauchy问题

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摘要

We consider the Cauchy problem for (energy-subcritical) nonlinear Schrodinger equations with sub-quadratic external potentials and an additional angular momentum rotation term. This equation is a well-known model for superfluid quantum gases in rotating traps. We prove global existence (in the energy space) for defocusing nonlinearities without any restriction on the rotation frequency, generalizing earlier results given in [11, 12]. Moreover, we find that the rotation term has a considerable influence in proving finite time blow-up in the focusing case.
机译:我们考虑具有次二次外部势和附加角动量旋转项的(能量次临界)非线性Schrodinger方程的柯西问题。该方程是旋转陷阱中超流体量子气体的众所周知的模型。我们证明了散焦非线性的全局存在(在能量空间中),而对旋转频率没有任何限制,从而对[11,12]中给出的早期结果进行了概括。此外,我们发现旋转项在聚焦情况下证明有限时间爆炸具有相当大的影响。

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