Titel
Scalable spin–photon entanglement by time-to-polarization conversion
Autor*in
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Abstract
The realization of quantum networks and quantum computers relies on the scalable generation of entanglement, for which spin-photon interfaces are strong candidates. Current proposals to produce entangled-photon states with such platforms place stringent requirements on the physical properties of the photon emitters, limiting the range and performance of suitable physical systems. We propose a scalable protocol, which significantly reduces the constraints on the emitter. We use only a single optical transition and an asymmetric polarizing interferometer. This device converts the entanglement from the experimentally robust time basis via a path degree of freedom into a polarization basis, where quantum logic operations can be performed. The fundamental unit of the proposed protocol is realized experimentally in this work, using a nitrogen-vacancy center in diamond. This classically assisted protocol greatly widens the set of physical systems suited for scalable entangled-photon generation and enables performance enhancement of existing platforms.
Stichwort
Quantum informationQuantum opticsSingle photons and quantum effects
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
phaidra.univie.ac.at/o:1279701
Erschienen in
Titel
npj Quantum Information
Band
6
Ausgabe
1
ISSN
2056-6387
Erscheinungsdatum
2020
Publication
Springer Science and Business Media LLC
Fördergeber
Vienna Science and Technology Fund (WWTF) — ICT12-041 PhoCluDi
Austrian Science Fund (FWF) — M 1852-N36
Austrian Science Fund (FWF) — W1210 DK-COQUS
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Erscheinungsdatum
2020
Zugänglichkeit
Rechte
Rechteangabe
© The Author(s) 2020
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