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arXiv quant-ph/9911030quant-ph
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简谐和微扰Mathieu振子系统的几何相位

Geometric phases in the simple harmonic and perturbative Mathieu's oscillator systems

JeongHyeong Park, Dae-Yup Song

摘要:

研究了简谐振子系统的几何相位。构造了完备的“本征函数”集,这些本征函数依赖于选择经典解的方式。对于本征函数,概率分布函数的两种不同的运动(宽度的脉动和中心的振荡)有助于几何相位,其可以根据经典解的参数给出。给出了一般波函数的几何相位。如果一个波函数在空间坐标反演下具有宇称,则几何相位可以定义为经典运动周期的一半演化。对于驱动的情况下,几何相位给出的外力的傅立叶系数。对经典运动方程为Mathieu方程的振子系统进行了微扰研究,计算了非零几何相位的第一项。

英文摘要:

Geometric phases of simple harmonic oscillator system are studied. Complete sets of "eigenfunctions" are constructed, which depend on the way of choosing classical solutions. For an eigenfunction, two different motions of the probability distribution function (pulsation of the width and oscillation of the center) contribute to the geometric phase which can be given in terms of the parameters of classical solutions. The geometric phase for a general wave function is also given. If a wave function has a parity under the inversion of space coordinate, then the geometric phase can be defined under the evolution of half of the period of classical motions. For the driven case, geometric phases are given in terms of Fourier coefficients of the external force. The oscillator systems whose classical equation of motion is Mathieu's equation are perturbatively studied, and the first term of nonvanishing geometric phase is calculated.

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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