论文标题
多径波粒子二元性具有量子叠加中的路径检测器
Multipath wave-particle duality with a path detector in a quantum superposition
论文作者
论文摘要
根据Bohr的互补原则，根据实验设置的选择，量子可以作为波或粒子行为。最近的一些两路干扰实验设计了一种方法，其中一种可以对这两种选择具有量子叠加，因此表明量子可能处于波和粒子性质的叠加。从惠勒的延迟选择实验的角度来看，这些实验引起了人们的关注。但是，也有人声称该实验可以违反互补性。在这里，我们从理论上分析了一个多径干扰实验，该实验在存在和不存在的量子叠加中具有a the-path检测器。我们表明，在所有这种情况下都尊重紧密的多径波颗粒双重性关系，并且互补性保持良好。明显违反互补性的行为可能是由于对这种情况下的路径区分性的评估不正确。
According to Bohr's principle of complementarity, a quanton can behave either as a wave or a particle, depending on the choice of the experimental setup. Some recent two-path interference experiments have devised methods where one can have a quantum superposition of the two choices, thus indicating that a quanton may be in a superposition of wave and particle nature. These experiments have been of interest from the point of view of Wheeler's delayed-choice experiment. However, it has also been claimed that this experiment can violate complementarity. Here we theoretically analyze a multipath interference experiment that has a which-path detector in a quantum superposition of being present and absent. We show that a tight multipath wave-particle duality relation is respected in all such situations, and complementarity holds well. The apparent violation of complementarity may be due to incorrect evaluation of path distinguishability in such scenarios.
