Aspects of time in quantum mechanics and emergent classicality

量子力学中的时间方面和新兴古典性

• 批准号: 2127612
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2127612
• 关键词: Aspects; time; quantum; mechanics; emergent

The project will involve many aspects of the nature of time in quantum mechanics and their relationship to measures of classicality and quantumness. Some focus will be on the arrival time problem in quantum mechanics (the question of the time at which a particle arrives at a given point) and the dwell time problem (the question of how much time a particle spends in a given region). These will be analysed from a number of different perspectives, including the decoherent histories approach to quantum theory and also the quasi-probability approach of Goldstein and Page (which arises in weak measurements). There will also be a focus on the Leggett-Garg inequalities, the temporal version of the Bell inequalities, which provide a very weak measure of the degree of quantumness in experiments involving sequential measurements.

该项目将涉及量子力学中时间性质的许多方面，以及它们与经典性和量子性度量的关系。一些重点将放在量子力学中的到达时间问题（粒子到达给定点的时间问题）和停留时间问题（粒子在给定区域花费多少时间的问题）。这些将从许多不同的角度进行分析，包括量子理论的退相干历史方法以及Goldstein和Page的准概率方法（在弱测量中出现）。也将重点放在莱格特-加格不等式，贝尔不等式的时间版本，它提供了一个非常弱的措施，在实验中涉及连续测量的量子度。