Spin-Light Coherence for Single-Spin Measurement and Control in Diamond

• DOI: 10.1126/science.1196436
• Publication Date: 2010-10-15T01:05:08Z
• Authors: B. B. Buckley; G. D. Fuchs; L. C. Bassett; D. D. Awschalom
• Keywords: Coherent control; Nitrogen-vacancy center; Coherence time; Quantum Metrology; Quantum sensor; Spin states

The exceptional spin coherence of nitrogen-vacancy centers in diamond motivates their function emerging quantum technologies. Traditionally, the state individual is measured optically and destructively. We demonstrate dispersive, single-spin coupling to light for both nondestructive measurement, through Faraday effect, coherent manipulation, optical Stark effect. These interactions can enable exchange information between single spins light, facilitating control, entanglement that scalable over large distances.