6533b86dfe1ef96bd12c96c6
RESEARCH PRODUCT
Entanglement of photons in their dual wave-particle nature
Zhong-xiao ManAdil S. RabEmanuele PolinoRosario Lo FrancoNicolò SpagnoloYun-jie XiaFabio SciarrinoNguyen Ba Ansubject
PhotonSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciScienceDegrees of freedom (physics and chemistry)General Physics and AstronomyDuality (optimization)Physics::OpticsFOS: Physical sciencesQuantum entanglement01 natural sciencesGeneral Biochemistry Genetics and Molecular BiologyPhysics and Astronomy; Foundations of quantum mechanics; Wave-particle duality; Entanglement; PhotonsSettore FIS/03 - Fisica Della MateriaArticle010305 fluids & plasmasEntanglementWave–particle dualityQuantum mechanics0103 physical sciencesFoundations of quantum mechanicQuantum information010306 general physicslcsh:ScienceQuantumPhysicsPhotonsQuantum PhysicsMultidisciplinaryQGeneral ChemistryQuantum PhysicsWave-particle dualityPhysics and AstronomyQubitlcsh:QChemistry (all); Biochemistry Genetics and Molecular Biology (all); Physics and Astronomy (all)Quantum Physics (quant-ph)Physics - OpticsOptics (physics.optics)description
Wave-particle duality is the most fundamental description of the nature of a quantum object, which behaves like a classical particle or wave depending on the measurement apparatus. On the other hand, entanglement represents nonclassical correlations of composite quantum systems, being also a key resource in quantum information. Despite the very recent observations of wave-particle superposition and entanglement, whether these two fundamental traits of quantum mechanics can emerge simultaneously remains an open issue. Here we introduce and experimentally realize a scheme that deterministically generates entanglement between the wave and particle states of two photons. The elementary tool allowing this achievement is a scalable single-photon setup which can be in principle extended to generate multiphoton wave-particle entanglement. Our study reveals that photons can be entangled in their dual wave-particle behavior and opens the way to potential applications in quantum information protocols exploiting the wave-particle degrees of freedom to encode qubits.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-02-14 |