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 quant-ph/0612065quant-ph
收藏

无测量的量子力学

Quantum mechanics without measurements

Robert B. Griffiths

摘要:

学生在理解量子力学时遇到的许多概念性问题,都源于标准(教科书)量子理论中通过测量引入概率的方式。在量子理论中引入一致的微观概率需要建立适当的样本空间,并适当考虑量子不相容性。当这样做时,薛定谔方程可以用来计算概率,而与系统是否被测量无关,并且通常归因于波函数坍缩的结果可以通过条件概率以较少误导的方式获得。玩具模型,包括测量仪器作为总量子系统的一部分,使这种方法可供学生使用。对这一教材的教学提出了一些看法。

英文摘要:

Many of the conceptual problems students have in understanding quantum mechanics arise from the way probabilities are introduced in standard (textbook) quantum theory through the use of measurements. Introducing consistent microscopic probabilities in quantum theory requires setting up appropriate sample spaces taking proper account of quantum incompatibility. When this is done the Schrodinger equation can be used to calculate probabilities independent of whether a system is or is not being measured, and the results usually ascribed to wave function collapse are obtained in a less misleading way through conditional probabilities. Toy models that include measurement apparatus as part of the total quantum system make this approach accessible to students. Some comments are made about teaching this material.

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。

↑