Quantum information processing and metrology with color centers in diamonds

The Nitrogen–Vacancy (NV) center is becoming a promising qubit for quantum information processing. The defect has a long coherence time at room temperature and it allows spin state initialized and read out by laser and manipulated by microwave pulses. It has been utilized as a ultra sensitive probe...

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Bibliographic Details
Published in:Frontiers of physics 2014-10, Vol.9 (5), p.587-597
Main Authors: Zhou, Jing-Wei, Wang, Peng-Fei, Shi, Fa-Zhan, Huang, Pu, Kong, Xi, Xu, Xiang-Kun, Zhang, Qi, Wang, Zi-Xiang, Rong, Xing, Du, Jiang-Feng
Format: Article
Language:English
Subjects:
Algorithms
Astronomy
Astrophysics and Cosmology
Atomic
Color centers
Condensed Matter Physics
Continuous radiation
Data processing
Decoupling
Diamonds
dynamical decoupling
Electron spin
Magnetic fields
Metrology
Molecular
Nitrogen–Vacancy center
NMR
Nuclear magnetic resonance
Optical and Plasma Physics
Particle and Nuclear Physics
phase estimation
Physics
Physics and Astronomy
quantum information processing and metrology
Quantum phenomena
Qubits (quantum computing)
Review Article
Room temperature
single spin detection
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Summary:The Nitrogen–Vacancy (NV) center is becoming a promising qubit for quantum information processing. The defect has a long coherence time at room temperature and it allows spin state initialized and read out by laser and manipulated by microwave pulses. It has been utilized as a ultra sensitive probe for magnetic fields and remote spins as well. Here, we review the recent progresses in experimental demonstrations based on NV centers. We first introduce our work on implementation of the Deutsch–Jozsa algorithm with a single electronic spin in diamond. Then the quantum nature of the bath around the center spin is revealed and continuous wave dynamical decoupling has been demonstrated. By applying dynamical decoupling, a multi-pass quantum metrology protocol is realized to enhance phase estimation. In the final, we demonstrated NV center can be regarded as a ultra-sensitive sensor spin to implement nuclear magnetic resonance (NMR) imaging at nanoscale.
ISSN:2095-0462
2095-0470
DOI:10.1007/s11467-014-0421-5