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arXiv 1602.06172physics.ed-ph
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学生对量子力学理解的调查

Surveying Students' Understanding of Quantum Mechanics

Chandralekha Singh, Guangtian Zhu

摘要:

针对特定物理主题的概念性多项选择题的开发对于设计研究性学习工具以降低难度具有重要意义。探讨了高年级本科生和研究生在一维空间单粒子非相对论性量子力学学习中遇到的困难。我们开发了一个以研究为基础的概念性多项选择调查,针对这些问题,以获得有关共同困难的信息,并将其管理到来自七个不同机构的一百多名学生。调查中针对的问题包括可能的波函数,束缚态和散射态,量子测量,期望值,哈密顿量的作用,波函数的时间依赖性和期望值的时间依赖性。我们发现,高年级本科生和研究生有许多共同的困难,这些概念和研究为基础的教程和同行指导工具,可以显着减少这些困难。该调查可用于评估各种指导性策略的有效性。

英文摘要:

Development of conceptual multiple-choice tests related to a particular physics topic is important for designing research-based learning tools to reduce the difficulties. We explore the difficulties that the advanced undergraduate and graduate students have with non-relativistic quantum mechanics of one particle in one spatial dimension. We developed a research-based conceptual multiple-choice survey that targets these issues to obtain information about the common difficulties and administered it to more than a hundred students from seven different institutions. The issues targeted in the survey include the set of possible wavefunctions, bound and scattering states, quantum measurement, expectation values, the role of the Hamiltonian, time-dependence of wavefunction and time-dependence of expectation value. We find that the advanced undergraduate and graduate students have many common difficulties with these concepts and that research-based tutorials and peer-instruction tools can significantly reduce these difficulties. The survey can be administered to assess the effectiveness of various intructional strategies.

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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