Zero- and Low-Field Sensing with Nitrogen-Vacancy Centers

Vetter, Philipp J.; Marshall, Alastair; Genov, Genko T.; Weiss, Tim F.; Striegler, Nico; Großmann, Eva F.; Oviedo-Casado, Santiago; Cerrillo, Javier; Prior, Javier; Neumann, Philipp; Jelezko, Fedor

doi:10.1103/physrevapplied.17.044028

Cited by 19 publications

(5 citation statements)

References 77 publications

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“…Fast and high-fidelity geometric control of a quantum system on hybrid spin registers in diamond has been realized [198]. Robust pulse sequences and optimized pulse pairs have been used to sense temperature and weak AC magnetic fields while decoupling from environmental noise [589], and optimal control of a nitrogen-vacancy spin ensemble in diamond has resulted in an improved detection of temperature and magnetic field [472]. Provably noiseresilient single-qubit gates have been designed with robust optimal control [659].…”

Section: Qoct In Experimentsmentioning

confidence: 99%

Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe

Koch

Boscain

Calarco

et al. 2022

EPJ Quantum Technol.

213

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Quantum optimal control, a toolbox for devising and implementing the shapes of external fields that accomplish given tasks in the operation of a quantum device in the best way possible, has evolved into one of the cornerstones for enabling quantum technologies. The last few years have seen a rapid evolution and expansion of the field. We review here recent progress in our understanding of the controllability of open quantum systems and in the development and application of quantum control techniques to quantum technologies. We also address key challenges and sketch a roadmap for future developments.

show abstract

Section: Qoct In Experimentsmentioning

confidence: 99%

Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe

Koch

Boscain

Calarco

et al. 2022

EPJ Quantum Technol.

213

View full text Add to dashboard Cite

show abstract

“…We employed CR for microwave-free and orientationfree dc magnetometry and demonstrated sensitivities in the η/ √ V ≈ 5 µT/µm 3/2 / √ Hz range for commercially available diamonds. We believe that our results are also useful for microwave-based low-field magnetometry [37,38], as well as for understanding many-body phenomena [8][9][10][11] and spin-mechanical effects [39] with strongly coupled spins.…”

Section: Discussionmentioning

confidence: 76%

Relaxation Processes in Dipole-Coupled Nitrogen-Vacancy Centers in Zero Field: Application in Magnetometry

Pellet-Mary,

Perdriat,

Huillery

et al. 2023

Phys. Rev. Applied

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We study relaxation processes in dipolar-coupled negatively charged nitrogen-vacancy (N-V − ) centers close to zero field. Specifically, we uncover regimes where flip-flop and double-flip processes, as well as mixing induced by local electric fields, play a significant role in N-V-N-V cross relaxation. Our results are relevant for understanding decoherence in many-body spin systems, as well as for high-sensitivity magneto-and electrometry with long-lived interacting solid-state spins. As a proof of principle, we present an orientation and microwave-free magnetometer based on cross relaxation.

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“…Moreover, NV sensors are also capable of detecting electric field [665][666][667][668], temperature [669,670] and pressure [671]. Recently, the boundaries of NV quantum sensing have been pushed into some special or extreme-condition areas, such as at zero or low magnetic field [619,672,673], under high pressure [616,[674][675][676][677][678], and at high temperatures [679]. In parallel, quantum optimization algorithms [680] and QEC [681][682][683] have also been incorporated into quantum metrology so as to improve the sensitivity in the presence of noise.…”

Section: Express Lettermentioning

confidence: 99%

Noisy intermediate-scale quantum computers

Cheng

Deng

et al. 2023

Front. Phys.

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Quantum computers have made extraordinary progress over the past decade, and significant milestones have been achieved along the path of pursuing universal fault-tolerant quantum computers. Quantum advantage, the tipping point heralding the quantum era, has been accomplished along with several waves of breakthroughs. Quantum hardware has become more integrated and architectural compared to its toddler days. The controlling precision of various physical systems is pushed beyond the fault-tolerant threshold. Meanwhile, quantum computation research has established a new norm by embracing industrialization and commercialization. The joint power of governments, private investors, and tech companies has significantly shaped a new vibrant environment that accelerates the development of this field, now at the beginning of the noisy intermediate-scale quantum era. Here, we first discuss the progress achieved in the field of quantum computation by reviewing the most important algorithms and advances in the most promising technical routes, and then summarizing the next-stage challenges. Furthermore, we illustrate our confidence that solid foundations have been built for the fault-tolerant quantum computer and our optimism that the emergence of quantum killer applications essential for human society shall happen in the future.

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Zero- and Low-Field Sensing with Nitrogen-Vacancy Centers

Cited by 19 publications

References 77 publications

Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe

Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe

Relaxation Processes in Dipole-Coupled Nitrogen-Vacancy Centers in Zero Field: Application in Magnetometry

Noisy intermediate-scale quantum computers

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