Experimental test of the relation between coherence and path information
Communications Physics 1:1 (2018)
Abstract:
© 2018, The Author(s). Quantum coherence stemming from the superposition behaviour of a particle beyond the classical realm, serves as one of the most fundamental features in quantum mechanics. The wave-particle duality phenomenon, which shares the same origin, has a strong relationship with quantum coherence. Recently, an elegant relation between quantum coherence and path information has been theoretically derived. Here, we experimentally test such new duality by l1-norm measure and the minimum-error state discrimination. We prepare three classes of two-photon states encoded in polarisation degree of freedom, with one photon serving as the target and the other photon as the detector. We observe that wave-particle-like complementarity and Bagan’s equality, defined by the duality relation between coherence and path information, is well satisfied. Our results may shed new light on the original nature of wave-particle duality and on the applications of quantum coherence as a fundamental resource in quantum technologies.Probing quantum features of photosynthetic organisms
NPJ QUANTUM INFORMATION 4 (2018) ARTN 60
Geometry of quantum correlations in space-time
PHYSICAL REVIEW A 98:5 (2018) ARTN 052312
Entanglement between living bacteria and quantized light witnessed by Rabi splitting
Journal of Physics Communications IOP Publishing 2:10 (2018) 101001
Proton tunnelling in hydrogen bonds and its implications in an induced-fit model of enzyme catalysis
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES 474:2218 (2018) ARTN 20180037