Entanglement between a Diamond Spin Qubit and a Photonic Time-Bin Qubit at Telecom Wavelength
| Autor: | A. Dréau, Sophie Hermans, Dirk Voigt, Wim de Jong, Anna Tchebotareva, Niels Dijkhuizen, Peter C. Humphreys, Peter J. Harmsma, Lun K. Cheng, Ronald Hanson, Ad L. Verlaan |
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| Přispěvatelé: | Delft University of Technology (TU Delft), The Netherlands Organisation for Applied Scientific Research (TNO), Kavli Institute of Nanosciences [Delft] (KI-NANO), Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Photon
Nonlinear optics Photon pairs FOS: Physical sciences General Physics and Astronomy Physics::Optics High Tech Systems & Materials Quantum entanglement 01 natural sciences Spontaneous parametric down-conversion [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] Quantum mechanics 0103 physical sciences 010306 general physics Spin (physics) Physics Quantum network Bell state Quantum Physics Optical quantum information processing Industrial Innovation business.industry Parametric down-conversion Quantum networks Communication networks Qubit Photonics Electronics Quantum Physics (quant-ph) business |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 2019, 123 (6), pp.063601. ⟨10.1103/PhysRevLett.123.063601⟩ Physical review letters, 123, 063601-1-063601-6 Physical Review Letters, 123(6) |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/PhysRevLett.123.063601⟩ |
| Popis: | We report on the realization and verification of quantum entanglement between a nitrogen-vacancy electron spin qubit and a telecom-band photonic qubit. First we generate entanglement between the spin qubit and a 637 nm photonic time-bin qubit, followed by photonic quantum frequency conversion that transfers the entanglement to a 1588 nm photon. We characterize the resulting state by correlation measurements in different bases and find a lower bound to the Bell state fidelity of ≥0.77±0.03. This result presents an important step towards extending quantum networks via optical fiber infrastructure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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