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Magnetometry utilizing a spin qubit in a solid state possesses high sensitivity. In particular, a magnetic sensor with a high spatial resolution can be achieved with the electron-spin states of a nitrogen vacancy (NV) center in diamond. In…

Nitrogen-vacancy (NV) based quantum sensors hold great potential for real-time single-cell sensing with far-reaching applications in fundamental biology and medical diagnostics. Although highly sensitive, the mapping of quantum measurements…

Electrical control of spins at the nanoscale offers significant architectural advantages in spintronics, because electric fields can be confined over shorter length scales than magnetic fields. Thus, recent demonstrations of electric-field…

Mesoscale and Nanoscale Physics · Physics 2021-10-15 Junjie Liu , Jakub Mrozek , Aman Ullah , Yan Duan , José J. Baldoví , Eugenio Coronado , Alejandro Gaita-Ariño , Arzhang Ardavan

The nitrogen vacancy (NV) color center in diamond is an enormously important platform for the development of quantum sensors, including for single spin and single molecule NMR. Detection of weak single-spin signals is greatly enhanced by…

Quantum Physics · Physics 2017-05-29 J. E. Lang , J. Casanova , Z. -Y. Wang , M. B. Plenio , T. S. Monteiro

Magnetometers based on quantum mechanical processes enable high sensitivity and long-term stability without the need for re-calibration, but their integration into fieldable devices remains challenging. This paper presents a CMOS quantum…

Applied Physics · Physics 2020-07-23 Mohamed I. Ibrahim , Christopher Foy , Dirk R. Englund , Ruonan Han

Quantum sensors, qubits sensitive to external fields, have become powerful detectors for various small acoustic and electromagnetic fields. A major key to their success have been dynamical decoupling protocols which enhance sensitivity to…

Quantum Physics · Physics 2021-06-24 Timo Joas , Andreas M. Waeber , Georg Braunbeck , Friedemann Reinhard

Quantum sensors have attracted broad interest in the quest towards sub-micronscale NMR spectroscopy. Such sensors predominantly operate at low magnetic fields. Instead, however, for high resolution spectroscopy, the high-field regime is…

The ability to control and manipulate spins via electrical, magnetic and optical means has generated numerous applications in metrology and quantum information science in recent years. A promising alternative method for spin manipulation is…

Mesoscale and Nanoscale Physics · Physics 2013-04-04 Sungkun Hong , Michael S. Grinolds , Patrick Maletinsky , Ronald L. Walsworth , Mikhail D. Lukin , Amir Yacoby

Nitrogen vacancy (NV) centers in diamond are widely deployed as local magnetic sensors, using coherent, single qubit control to measure both time-averaged fields and noise with nanoscale spatial resolution. Moving beyond single qubits to…

Quantum Physics · Physics 2025-04-18 Jared Rovny , Shimon Kolkowitz , Nathalie P. de Leon

The methods for controlling spin states of negatively charged nitrogen-vacancy (NV) centers using microwave (MW) or radiofrequency (RF) excitation fields for electron spin and nuclear spin transitions are effective in strong magnetic fields…

Quantum Physics · Physics 2026-04-28 A. K. Dmitriev , H. Y. Chen , G. D. Fuchs , A. K. Vershovskii

Quantum sensing exploits the strong sensitivity of quantum systems to measure small external signals. The nitrogen-vacancy (NV) center in diamond is one of the most promising platforms for real-world quantum sensing applications,…

Quantum Physics · Physics 2022-05-12 Ziwei Qiu , Uri Vool , Assaf Hamo , Amir Yacoby

The methods for controlling spin states of negatively charged nitrogen-vacancy centers using a combination of microwave (MW) or radiofrequency (RF) excitation field for electron spin transitions and RF excitation field for nuclear spin…

Mesoscale and Nanoscale Physics · Physics 2026-04-28 A K Dmitriev , A K Vershovskii

The nitrogen-vacancy (NV) center is a promising candidate to realize practical quantum sensors with high sensitivity and high spatial resolution, even at room temperature and atmospheric pressure. In conventional high-frequency AC…

Spin defects in solids, such as the nitrogen-vacancy (NV) center in diamond, have emerged as a key tool for detecting nuclear spins at the nanoscale. While active nuclear spin control via radio-frequency (RF) irradiation is often…

Single nitrogen vacancy (NV) centers in diamond have been used extensively for high-sensitivity nanoscale sensing, but conventional approaches use confocal microscopy to measure individual centers sequentially, limiting throughput and…

Spin degrees of freedom of charged nitrogen-vacancy (NV$^-$) centers in diamond have large decoherence times even at room temperature, can be initialized and read out using optical fields, and are therefore a promising candidate for solid…

Other Condensed Matter · Physics 2009-11-13 A. M. Zagoskin , J. R. Johansson , S. Ashhab , Franco Nori

Solid state spins have demonstrated significant potential in quantum sensing with applications including fundamental science, medical diagnostics and navigation. The quantum sensing schemes showing best performance under ambient conditions…

Mesoscale and Nanoscale Physics · Physics 2023-06-14 Beat Bürgler , Tobias F. Sjolander , Ovidiu Brinza , Alexandre Tallaire , Jocelyn Achard , Patrick Maletinsky

Molecular magnets are attractive as spin qubits due to their chemical tunability, addressability through electron-spin resonance techniques, and long coherence times. Clock transitions (CTs), for which the system is immune to the effect of…

Dynamical decoupling techniques are widely used to characterize and control the environments of solid-state quantum defects, enabling solid-state quantum memories and nanoscale quantum sensors. However, resolution is often limited by the…

Magnetic sensing beyond linear regime could broaden the frequency range of detectable magnetic fields, which is crucial to various microwave and quantum applications. Recently, nonlinear interactions in diamond nitrogen-vacancy (NV)…

Applied Physics · Physics 2024-05-07 Zhongqiang Hu , Zhiping He , Qiuyuan Wang , Chung-Tao Chou , Justin T. Hou , Luqiao Liu