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arXiv quant-ph/0411159quant-ph
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Morse势的能级集

Energy Level Sets for the Morse Potential

Fariel Shafee

摘要:

为了继续我们以前的工作,研究在量子控制中使用水平集方法的可能性,我们在这里提出了一些数值结果的莫尔斯势。我们发现,对于束缚能级较少的系统,适当处理Morse势本征函数和本征值,非谐微扰近似实际上是无效的。因此,我们使用龙格-库塔积分方法,给出更合理的结果。用本征函数计算了两能级间跃迁的偶极矩,发现存在一个临界势深度。最后,我们发现水平集给出相等的期望值的能量,并评论所需的幺正算子,使过渡从任何水平集到另一个。

英文摘要:

In continuation of our previous work investigating the possibility of the use of the Level Set Method in quantum control, we here present some numerical results for a Morse potential. We find that a proper treatment of the Morse potential eigenfunctions and eigenvalues for the case of a system with a small number of bound energy levels, the anharmonic perturbative approximation is actually invalid. We, therefore, use a Runge-Kutta integration method that gives more plausible results. We also calculate the dipole moment for the transitions between the two levels with our eigenfunctions and find that there is a critical depth of the potential. Finally we find the level sets giving equal expectation values of the energy, and comment on the unitary operators needed to make transitions from any level set to another.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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