arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1701.01409physics.ed-ph
收藏

学生在确定量子力学期望值时遇到的困难

Student difficulties with determining expectation values in quantum mechanics

Chandralekha Singh, Emily Marshman

摘要:

可观测量的期望值是量子力学中的一个重要概念。然而,高水平的本科生和研究生在物理学中有概念和程序上的困难时,确定物理观测值的期望值,特别是当使用狄拉克符号。为了调查这些困难,我们管理的自由回答和多项选择题,并与学生进行个别访谈。在这里,我们讨论的数据分析学生的困难时,确定期望值。

英文摘要:

The expectation value of an observable is an important concept in quantum mechanics. However, upper-level undergraduate and graduate students in physics have both conceptual and procedural difficulties when determining the expectation value of physical observables, especially when using Dirac notation. To investigate these difficulties, we administered free-response and multiple-choice questions and conducted individual interviews with students. Here, we discuss the analysis of data on student difficulties when determining the expectation value.

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。

↑