期刊
SCIENCE
卷 354, 期 6314, 页码 847-850出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aah6875
关键词
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资金
- NSF
- Center for Ultracold Atoms
- Air Force Office of Scientific Research Multidisciplinary University Research Initiative (MURI)
- Office of Naval Research MURI
- Defense Advanced Research Projects Agency
- Army Research Laboratory
- Vannevar Bush Faculty Fellowship program
- Carlsberg Foundation
- Harvard Quantum Optics Center
- NSF [ECS-0335765]
- DOE [DE-AC04-94AL85000]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1506284] Funding Source: National Science Foundation
Efficient interfaces between photons and quantum emitters form the basis for quantum networks and enable optical nonlinearities at the single-photon level. We demonstrate an integrated platform for scalable quantum nanophotonics based on silicon-vacancy (SiV) color centers coupled to diamond nanodevices. By placing SiV centers inside diamond photonic crystal cavities, we realize a quantum-optical switch controlled by a single color center. We control the switch using SiV metastable states and observe optical switching at the singlephoton level. Raman transitions are used to realize a single-photon source with a tunable frequency and bandwidth in a diamond waveguide. By measuring intensity correlations of indistinguishable Raman photons emitted into a single waveguide, we observe a quantum interference effect resulting from the superradiant emission of two entangled SiV centers.
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