Time-resolved magnetic sensing with electronic spins in diamond

Cooper, Alexandre; Magesan, Easwar; Yum, H.; Cappellaro, Paola

doi:10.1038/ncomms4141

Cited by 73 publications

(89 citation statements)

References 74 publications

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“…Because an NV electron is spatially confined within 1 nm, it can be placed within a few nanometers from the target. Therefore, research leading to the application of NV centers for magnetic sensing has become very active recently [117][118][119][120][121][122][123][124][125][126][127][128] and the use of such sensors in solid-state physics research is [98] Figure 7. Sensing the magnetic field that arose from the nuclear spins of a molecule using (a) a single NV center embedded in a diamond substrate and (b) a single NV center embedded in the tip of a diamond cantilever.…”

Section: Diamond Quantum Sensingmentioning

confidence: 99%

Isotope engineering of silicon and diamond for quantum computing and sensing applications

2014

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Some of the stable isotopes of silicon and carbon have zero nuclear spin, whereas many of the other elements that constitute semiconductors consist entirely of stable isotopes that have nuclear spins. Silicon and diamond crystals composed of nuclear-spin-free stable isotopes ( 28 Si, 30 Si, or 12 C) are considered to be ideal host matrixes to place spin quantum bits (qubits) for quantum-computing and -sensing applications, because their coherent properties are not disrupted thanks to the absence of host nuclear spins. The present paper describes the state-of-theart and future perspective of silicon and diamond isotope engineering for development of quantum information-processing devices.

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Section: Diamond Quantum Sensingmentioning

confidence: 99%

Isotope engineering of silicon and diamond for quantum computing and sensing applications

2014

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“…In this regard, our methods are different from Refs. [18,19], and more in the spirit of Refs. [10,31].…”

Section: The Setupmentioning

confidence: 99%

“…In fact, we need not even know the frequency, and indeed, the magnetic field can have a complicated temporal profile. As such, recently a scheme to construct the profile of arbitrary time-varying magnetic fields has been proposed [18,19]. Essentially, the idea is to apply many different control pulse sequences, associated with the Walsh functions [35], with a fixed final acquisition time.…”

Section: Introductionmentioning

confidence: 99%

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Utilizing nitrogen-vacancy centers to measure oscillating magnetic fields

Chaudhry

2014

Phys. Rev. A

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We show how nitrogen vacancy (NV) centers can be used to determine the amplitude, phase and frequency of unknown weak monochromatic and multichromatic oscillating magnetic fields using only the periodic dynamical decoupling (PDD) and Carr-Purcell-Meiboom-Gill (CPMG) sequences. The effect of decoherence on the measurement of the magnetic field parameters is explicitly analyzed, and we take into account the fact that different pulse sequences suppress decoherence to different extents. Since the sensitivity increases with increasing sensing time while it decreases due to decoherence, we use the Fisher information matrix in order to optimize the number of pulses that should be used.

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“…NV-based magnetometers [5,6] can be transformative tools in quantum information, material science [7], and bio-imaging [8][9][10], allowing, for example, high-resolution magnetic imaging of living cells [11].…”

Section: Introductionmentioning

confidence: 99%

Atomic-Scale Nuclear Spin Imaging Using Quantum-Assisted Sensors in Diamond

et al. 2015

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Nuclear spin imaging at the atomic level is essential for the understanding of fundamental biological phenomena and for applications such as drug discovery. The advent of novel nanoscale sensors promises to achieve the long-standing goal of single-protein, high spatial-resolution structure determination under ambient conditions. In particular, quantum sensors based on the spin-dependent photoluminescence of nitrogen-vacancy (NV) centers in diamond have recently been used to detect nanoscale ensembles of external nuclear spins. While NV sensitivity is approaching single-spin levels, extracting relevant information from a very complex structure is a further challenge since it requires not only the ability to sense the magnetic field of an isolated nuclear spin but also to achieve atomic-scale spatial resolution. Here, we propose a method that, by exploiting the coupling of the NV center to an intrinsic quantum memory associated with the nitrogen nuclear spin, can reach a tenfold improvement in spatial resolution, down to atomic scales. The spatial resolution enhancement is achieved through coherent control of the sensor spin, which creates a dynamic frequency filter selecting only a few nuclear spins at a time. We propose and analyze a protocol that would allow not only sensing individual spins in a complex biomolecule, but also unraveling couplings among them, thus elucidating local characteristics of the molecule structure.

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Time-resolved magnetic sensing with electronic spins in diamond

Cited by 73 publications

References 74 publications

Isotope engineering of silicon and diamond for quantum computing and sensing applications

Isotope engineering of silicon and diamond for quantum computing and sensing applications

Utilizing nitrogen-vacancy centers to measure oscillating magnetic fields

Atomic-Scale Nuclear Spin Imaging Using Quantum-Assisted Sensors in Diamond

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