期刊
PHYSICAL REVIEW LETTERS
卷 114, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.123001
关键词
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资金
- University of Cambridge
- Alexander-von-Humboldt Stiftung, Engineering and Physical Sciences Research Council [EP/H005676/1]
- European Research Council [240335, 617985]
- EU-FP7 Marie Curie Initial Training Networks COMIQ
- S3NANO
- Engineering and Physical Sciences Research Council [EP/H005676/1, 1209742] Funding Source: researchfish
- EPSRC [EP/H005676/1] Funding Source: UKRI
Coupling individual quantum systems lies at the heart of building scalable quantum networks. Here, we report the first direct photonic coupling between a semiconductor quantum dot and a trapped ion and we demonstrate that single photons generated by a quantum dot controllably change the internal state of a Yb+ ion. We ameliorate the effect of the 60-fold mismatch of the radiative linewidths with coherent photon generation and a high-finesse fiber-based optical cavity enhancing the coupling between the single photon and the ion. The transfer of information presented here via the classical correlations between the sigma(z) projection of the quantum-dot spin and the internal state of the ion provides a promising step towards quantum-state transfer in a hybrid photonic network.
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