一维谐振子坐标表象与动量表象的等价性STUDY ON THE EQUIVALENCE BETWEEN COORDINATE REPRESENTATION AND MOMENTUM REPRESENTATION FOR ONE-DIMENSIONAL HARMONIC OSCILLATOR
纪怀昱,张子骏,郑华,孙辉
摘要(Abstract):
一维谐振子是量子力学中少数可以精确解析求解的模型之一,可以用于检验量子力学的理论与方法,具有丰富的内涵。利用傅里叶变换与厄米多项式的生成函数,实现了一维谐振子坐标表象中本征波函数到动量表象中本征波函数的变换,验证了两种表象中对一维谐振子描述的等价性与联系。利用代数解法分别得到一维谐振子在坐标表象与动量表象中本征能量与本征波函数,进一步讨论了两种表象的等价性。强调了物理学中“降维打击”思想,加深学生对量子力学的理解,激发学生的学习兴趣。
关键词(KeyWords): 一维谐振子;厄米多项式;生成函数;傅里叶变换
基金项目(Foundation): 国家自然科学基金(11905120)
作者(Author): 纪怀昱,张子骏,郑华,孙辉
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