| 一维受迫谐振子量子运动的经典特性 |
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| 引用本文： | 夏小建.一维受迫谐振子量子运动的经典特性[J].大学物理,2011,30(8):22-24,29. |
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| 作者姓名： | 夏小建 |
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| 作者单位： | 泉州师范学院物理与信息工程学院,福建泉州,362000 |
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| 摘 要： | 对经典一维受迫谐振子量子化,求解量子化后体系的时间演化算符.应用相空间准概率分布函数,研究了体系的量子特性.研究结果表明,初始为真空态,经过时间演化,系统波函数是一个二维高斯波包;波包中心的振幅和相位受到作用力的调制,成为调幅、调相波,波包中心的运动与经典受迫谐振子的运动形式相同.
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| 关 键 词： | 一维受迫谐振子 相干态 相空间的准概率分布函数 |
The classical characteristics of movement of one-dimensional quantum forced oscillator |
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| XIA Xiao-jian.The classical characteristics of movement of one-dimensional quantum forced oscillator[J].College Physics,2011,30(8):22-24,29. |
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| Authors: | XIA Xiao-jian |
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| Institution: | XIA Xiao-jian(School of Physics and Information Engineering,Quanzhou Normal College,Quanzhou,Fujian 362000,China) |
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| Abstract: | The one-dimensional classical forced oscillator is quantized.The exact solution of time evolution operator of the system is obtained.The quasi-probability distribution function of phase space is used to investigate the quantum characteristics of one-dimensional forced oscillator.The results show that the Wigner function is two-dimensional Gaussian wave packet from the initial vacuum state.The central coordinate and momentum of the Gaussian wave packet move in the same manner as one-dimensional classical har... |
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| Keywords: | one-dimensional forced oscillator coherent state quasi-probability distribution functions of phase space |
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