论文标题
宏观物质波干涉测定法中的量子古典假设检验
Quantum-classical hypothesis tests in macroscopic matter-wave interferometry
论文作者
论文摘要
我们通过证明重分子和冷原子集合的干扰来评估迄今为止最宏观的波波实验探测量子古典边界的程度。为此，我们考虑了一组严格的贝叶斯测试方案，用于量子理论的一组假设修改，包括精心研究的自发塌陷模型，该模型破坏了叠加并恢复了大型现实主义。测量事件排除的修改参数范围量化了量子实验的宏观性，而贝叶斯更新引起的后验分布的形状揭示了数据在测试大型现实主义时的结论性。该协议可以作为设计未来物质波实验的指南，更接近真正的宏观尺度。
We assess the most macroscopic matter-wave experiments to date as to the extent to which they probe the quantum-classical boundary by demonstrating interference of heavy molecules and cold atomic ensembles. To this end, we consider a rigorous Bayesian test protocol for a parametrized set of hypothetical modifications of quantum theory, including well-studied spontaneous collapse models, that destroy superpositions and reinstate macrorealism. The range of modification parameters ruled out by the measurement events quantifies the macroscopicity of a quantum experiment, while the shape of the posterior distribution resulting from the Bayesian update reveals how conclusive the data are at testing macrorealism. This protocol may serve as a guide for the design of future matter-wave experiments ever closer to truly macroscopic scales.
