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Updated: Jun 8, 2026
10:39
Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
Spin-light coherence for single-spin measurement and control in diamond
B B Buckley1, G D Fuchs, L C Bassett
1Center for Spintronics and Quantum Computation, University of California, Santa Barbara, CA 93106, USA.
Science (New York, N.Y.)
|October 16, 2010
Summary
We demonstrate a new method for measuring and controlling the spin state of nitrogen-vacancy centers in diamond using light. This breakthrough enables nondestructive quantum measurements and scalable quantum information processing.
Area of Science:
- Quantum optics
- Solid-state quantum information science
- Diamond quantum technologies
Background:
- Nitrogen-vacancy (NV) centers in diamond are promising qubits for quantum technologies due to their long spin coherence times.
- Conventional NV spin state readout is optical and destructive, limiting applications.
- Developing nondestructive measurement and coherent control techniques is crucial for advancing quantum information processing.
Purpose of the Study:
- To demonstrate a method for nondestructive spin measurement of individual NV centers using light.
- To achieve coherent spin manipulation of NV centers via light-matter interactions.
- To lay the groundwork for scalable quantum information exchange between NV spins and photons.
Main Methods:
- Utilized the Faraday effect for dispersive, single-spin readout of NV centers.
- Employed the optical Stark effect for coherent spin manipulation of NV centers.
- Investigated light-matter interactions for quantum information transfer.
Main Results:
- Successfully demonstrated nondestructive spin measurement of individual NV centers through optical means.
- Achieved coherent spin manipulation of NV centers using light-induced effects.
- Established a foundation for coherent spin-photon interfaces.
Conclusions:
- Dispersive light-matter coupling enables both coherent control and nondestructive measurement of NV spin states.
- These techniques are essential for scalable quantum information processing and entanglement over long distances.
- The demonstrated methods pave the way for advanced quantum technologies utilizing NV centers.
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