论文标题
粒子状态是在干涉仪中等于波和全态状态的
Particle states are equidistant to wave and fully-entangled states in an interferometer
论文作者
论文摘要
在本文中,我们表明,在两臂干涉仪中,具有完美路径可区分性(颗粒)的纯量子状态在几何上与所有具有恒定路径可区分性的状态在几何上等距D。此特性并不是其他状态共享的,例如完美的边缘可视性(WAV)或最大纠缠的量子状态(anganglon)。实际上,粒子与任何其他状态之间的距离仅取决于后者的区分性。相反,波或缠绕之间的距离,任何其他单个光子状态都取决于其他参数。
In this article we show that, in a two-arm interferometer, pure quantum states of perfect path distinguishability (particles) are geometrically equidistant from all states with constant path distinguishability D. This property is not shared by other states, such as perfect fringe-visibility (waves) or maximally entangled quantum states (entanglon). Indeed, the Bures distance between a particle and any other state depends only the distinguishability of the latter. On the contrary, the Bures distance between a wave or an entanglon, and any other single photon state depends on other set of parameters.