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Open AccessJournal ArticleDOI

Coupling of nitrogen-vacancy centers to photonic crystal cavities in monocrystalline diamond.

TLDR
The zero-phonon transition rate of a nitrogen-vacancy center is enhanced by a factor of ∼70 by coupling to a photonic crystal resonator fabricated in monocrystalline diamond using standard semiconductor fabrication techniques.
Abstract
The zero-phonon transition rate of a nitrogen-vacancy center is enhanced by a factor of ∼70 by coupling to a photonic crystal resonator fabricated in monocrystalline diamond using standard semiconductor fabrication techniques. Photon correlation measurements on the spectrally filtered zero-phonon line show antibunching, a signature that the collected photoluminescence is emitted primarily by a single nitrogen-vacancy center. The linewidth of the coupled nitrogen-vacancy center and the spectral diffusion are characterized using high-resolution photoluminescence and photoluminescence excitation spectroscopy.

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Journal ArticleDOI

Magnetometry with nitrogen-vacancy defects in diamond

TL;DR: The physical principles that allow for magnetic field detection with NV centres are presented and first applications of NV magnetometers that have been demonstrated in the context of nano magnetism, mesoscopic physics and the life sciences are discussed.
Journal ArticleDOI

Quantum technologies with optically interfaced solid-state spins

TL;DR: In this article, the authors review recent progress in impurity systems such as colour centres in diamond and silicon carbide, rare-earth ions in solids and donors in silicon and project a possible path to chip-scale quantum technologies through sustained advances in nanofabrication, quantum control and materials engineering.
Journal ArticleDOI

Material platforms for spin-based photonic quantum technologies

TL;DR: In this paper, the authors highlight the progress in three leading material platforms: diamond, silicon carbide and atomically thin semiconductors, with a focus on applications in quantum networks.
Journal ArticleDOI

Observation of entanglement between a quantum dot spin and a single photon

TL;DR: The observation of quantum entanglement between a semiconductor quantum dot spin and the colour of a propagating optical photon constitutes a first step towards implementation of a quantum network with nodes consisting of semiconductor spin quantum bits.
References
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Book

Quantum Computation and Quantum Information

TL;DR: In this article, the quantum Fourier transform and its application in quantum information theory is discussed, and distance measures for quantum information are defined. And quantum error-correction and entropy and information are discussed.
Journal ArticleDOI

Quantum computation and quantum information

TL;DR: This special issue of Mathematical Structures in Computer Science contains several contributions related to the modern field of Quantum Information and Quantum Computing, with a focus on entanglement.
Journal ArticleDOI

Photonic quantum technologies

TL;DR: The first quantum technology that harnesses quantum mechanical effects for its core operation has arrived in the form of commercially available quantum key distribution systems as mentioned in this paper, which achieves enhanced security by encoding information in photons such that an eavesdropper in the system can be detected.
Journal ArticleDOI

Ultralong spin coherence time in isotopically engineered diamond

TL;DR: Here, it is demonstrated the synthesis and application of ultrapure isotopically controlled single-crystal chemical vapour deposition (CVD) diamond with a remarkably low concentration of paramagnetic impurities, and single electron spins show the longest room-temperature spin dephasing times ever observed in solid-state systems.
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