Illustration of quantum complementarity using single photons interfering on a grating

Path-Phase Information Complementarity for Interfering Particles through State-Discrimination

We analyze the trade-off between the amounts of information obtainable on complementary properties of a qubit state by simultaneous measurements. We consider a "state discrimination" scenario wherein the same measurements are repeated, but the input states must be guessed in every run. We find a general complementarity relation for path-phase guesses by any generalized measurements in this scenario. The counterpart of this input-output mutual information (MI) reveals a hitherto unknown aspect of complementarity.

Path-phase duality of an interfering particle with translational-internal entanglement

The aim of this paper is to revisit the implications of complementarity when we inject into a Mach Zehnder interferometer particles with internal structure, prepared in special translational-internal entangled (TIE) states. This correlation causes the path distinguishability to be phase dependent in contrast to the standard case. We show that such a TIE state permits us to detect small phase shifts along with almost perfect path distinguishability, beyond the constraints imposed by complementarity on simultaneous which-way and which-phase measurements for standard cases (when distinguishabilit…

超导电路中的纠缠-干涉互补性及其实验演示

Entanglement-interference complementarity and experimental demonstration in a superconducting circuit

该研究推导了定量描述初始混合态下纠缠与干涉条纹可见度关系的等式，揭示纠缠-干涉互补性，并通过超导电路实验验证了该关系。

Physical reality and the Complementarity Principle

Consideration of the von Neumann measurement process underlying interference experiments shows that the uncertainty in the incoming wave, responsible for its interference, translates during measurement into an uncertainty at the measuring apparatus. However, subsequent measurement on the apparatus does not reveal any new information about the interfering wave. This observation, in the context of recent advances in quantum information, suggests an argument for an information theoretic interpretation of quantum mechanics.

基于感应相干性的干涉仪中相干性与路径可区分性之间的互补关系

Complementarity relationship between coherence and path distinguishability in an interferometer based on induced coherence

本文在基于感应相干性的干涉仪中，推导了光子间一阶相干性与起源晶体区分信息之间的互补关系，并验证其适用于任意光子通量率，且实验证实了该关系。

通过振幅测量实现的光学干涉

Optical interference by amplitude measurement

本文提出并验证了一种通过零差测量直接测量并相加场振幅来实现干涉的技术，即使路径可区分也能产生干涉，挑战了互补性原理，并可扩展非平衡干涉仪和遥感的应用范围。