论文标题
路径积分的弱价值
Weak values from path integrals
论文作者
论文摘要
我们将弱测量框架连接到量子力学的路径积分公式。我们展示了如何从弱价值测量中推断出Feynman繁殖器。我们还明确地获得了弱值的表达式，并明确地解析了系统和探针之间弱耦合的量子和经典方面。这些表达式显示在量子混乱相关研究（提供涉及量子疤痕的例证）以及解决当前弱价值相关的争议（我们讨论干涉仪中的不连续轨迹以及经典限制中异常弱值的问题）中有用）。
We connect the weak measurements framework to the path integral formulation of quantum mechanics. We show how Feynman propagators can in principle be experimentally inferred from weak value measurements. We also obtain expressions for weak values parsing unambiguously the quantum and the classical aspects of weak couplings between a system and a probe. These expressions are shown to be useful in quantum chaos related studies (an illustration involving quantum scars is given), and also in solving current weak-value related controversies (we discuss the existence of discontinuous trajectories in interferometers and the issue of anomalous weak values in the classical limit).
