Abstract
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.
Lingua originale | English |
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Numero di pagine | 7 |
Rivista | Nature Communications |
Volume | 8 |
Stato di pubblicazione | Published - 2017 |
All Science Journal Classification (ASJC) codes
- ???subjectarea.asjc.1600.1600???
- ???subjectarea.asjc.1300.1300???
- ???subjectarea.asjc.3100.3100???