Quantum information processing and metrology with color centers in diamonds
Quantum information processing and metrology with color centers in diamonds作者机构：Hefei National Laboratory for Physics Sciences at the Microscale and Department of Modern Physics University of Science and Technology of China Hefei 230026 China
出 版 物：《Frontiers of physics》 (物理学前沿（英文版）)
年 卷 期：2014年第9卷第5期
页 面：587-597页
核心收录：
学科分类：07[理学] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 070201[理学-理论物理] 0702[理学-物理学]
基 金：Acknowledgements This work was supported by the National Key Basic Research Program of China (Grant No. 2013CB921800) the National Natural Science Foundation of China (Grant Nos. 11227901 11275183 91021005 and 10834005) the 'Strategic Priority Research Program (B)' of the CAS (Grant No. XDB01030400) and the Fundamental Research Funds for the Central Universities
主 题：quantum information processing and metrology Nitrogen Vacancy center phase estimation dynamical deeoupling single spin detection
摘 要：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 sensi- tive 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.
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