Details

Autor(en) / Beteiligte

• Meyer, H M
• Stockill, R
• Steiner, M
• Le Gall, C
• Matthiesen, C
• Clarke, E
• Ludwig, A
• Reichel, J
• Atatüre, M
• Köhl, M

Titel

Direct photonic coupling of a semiconductor quantum dot and a trapped ion

Ist Teil von

• Physical review letters, 2015-03, Vol.114 (12), p.123001-123001, Article 123001

Ort / Verlag

United States

Erscheinungsjahr

2015

Link zum Volltext

Quelle

American Physical Society

Beschreibungen/Notizen

• 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 σ_{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.