Local and bulk 13C hyperpolarization in nitrogen-vacancy-centred diamonds at variable fields and orientations

Álvarez, Gonzalo; Bretschneider, Christian O.; Fischer, Ran; London, Paz; Kanda, H.; Onoda, Shinobu; Isoya, Junichi; Gershoni, D.; Frydman, Lucio

doi:10.1038/ncomms9456

Cited by 106 publications

(113 citation statements)

References 53 publications

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“…Nuclear spins, coupled by hyperfine interaction to the electron spin of the NV-center, are important for many of these applications [1,3,[6][7][8][9][10][11][12][13]. For example, in QIP applications, the nuclear spins can hold quantum information [12,13], serving as part of a quantum register [1].…”

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confidence: 99%

“…Lx, 76.70.Hb, 33.35.+r, 61.72.JNitrogen-Vacancy (NV) centers in diamond have interesting properties for applications in room-temperature metrology, spectroscopy, and Quantum Information Processing (QIP) [1][2][3][4][5][6]. Nuclear spins, coupled by hyperfine interaction to the electron spin of the NV-center, are important for many of these applications [1,3,[6][7][8][9][10][11][12][13]. For example, in QIP applications, the nuclear spins can hold quantum information [12,13], serving as part of a quantum register [1].…”

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confidence: 99%

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Characterization of hyperfine interaction between an NV electron spin and a first-shellC13nuclear spin in diamond

Rao

Suter

2016

Phys. Rev. B

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The Nitrogen-Vacancy (NV) center in diamond has attractive properties for a number of quantum technologies that rely on the spin angular momentum of the electron and the nuclei adjacent to the center. The nucleus with the strongest interaction is the 13 C nuclear spin of the first shell. Using this degree of freedom effectively hinges on precise data on the hyperfine interaction between the electronic and the nuclear spin. Here, we present detailed experimental data on this interaction, together with an analysis that yields all parameters of the hyperfine tensor, as well as its orientation with respect to the atomic structure of the center.PACS numbers: 03.67. Lx, 76.70.Hb, 33.35.+r, 61.72.JNitrogen-Vacancy (NV) centers in diamond have interesting properties for applications in room-temperature metrology, spectroscopy, and Quantum Information Processing (QIP) [1][2][3][4][5][6]. Nuclear spins, coupled by hyperfine interaction to the electron spin of the NV-center, are important for many of these applications [1,3,[6][7][8][9][10][11][12][13]. For example, in QIP applications, the nuclear spins can hold quantum information [12,13], serving as part of a quantum register [1]. Accurate knowledge of the hyperfine interaction is necessary, e.g., for designing precise and fast control sequences for the nuclear spins [14,15]. With a known Hamiltonian, control sequences can be tailored by optimal control techniques to dramatically improve the speed and precision of multi-qubit gates [16][17][18][19].The 13 C nuclear spin of the first coordination shell is a good choice for a qubit due to its large hyperfine coupling to the electronic spin of the NV center, which can be used to implement fast gate operations [3,20,21] or highspeed quantum memories [22]. Full exploitation of this potential requires accurate knowledge of the hyperfine interaction, including the anisotropic (tensor) components. The interaction tensor has been calculated by , but only a limited number of experimental studies of this hyperfine interaction exist to date [27][28][29]. In this work, we present a detailed analysis of this hyperfine interaction. The experiments were carried out on single NV centers of a diamond crystal with a natural abundance of 13 C and a nitrogen concentration of < 5 ppb using a home-built confocal microscope and microwave electronics for excitation [22].The presence of a nuclear spin in the first coordination shell reduces the symmetry of the NV center from C 3V to C S , a single mirror plane. This symmetry plane passes through the NV symmetry axis and the 13 C nuclear spin as illustrated in Fig. 1(a). The NV symmetry axis defines the z-axis of the NV frame of reference, the x-axis lies in the symmetry plane of the center, and the y-axis is perpendicular to both of them. Due to the symmetry of the system, only those elements of the hyperfine tensor that are invariant with respect to the inversion of the y-coordinate can be non-zero. Hence, the hyperfine Hamiltonian in the NV frame of reference can be written as(1) Here, S α an...

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confidence: 99%

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Characterization of hyperfine interaction between an NV electron spin and a first-shellC13nuclear spin in diamond

Rao

Suter

2016

Phys. Rev. B

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“…G. Alvarez et al used shuttling system for polarization transfer (in low magnetic field) and detection (in high magnetic field) at room temperature. 28 They used the asymmetric hyperfine interaction-mediated polarization transfer system in low magnetic field by addressing different powers of microwave irradiations, which induce different microwave fields. In a low magnetic field, optically-pumped NV center transfers its polarization to the adjacent 13 C and its polarization was transferred to the outer nuclei by spin diffusion (nuclear -nuclear dipole coupling).…”

Section: Samplementioning

confidence: 99%

Minireview on Nuclear Spin Polarization in Optically-Pumped Diamond Nitrogen Vacancy Centers

Jeong¹

2016

Journal of the Korean Magnetic Resonance Society

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Nitrogen vacancy-centered diamond has recently emerged as a promising material for various applications due to its special optical and magnetic properties. In particular, its applications as a fluorescent biomarker with small toxicity, magnetic field and electric field sensors have been a topic of great interest. Recent review 1 (R. Schirhagl et al 2014) introduced those applications using single NV-center in nanodiamond. In this minireview, I introduce the rapidly emerging DNP (Dynamic Nuclear Polarization) field using optically-pumped NV center in diamonds. Additionally, the possibility of exploiting the optically-pumped NV center for polarization transfer source, which will produce a profound impact on room temperature DNP, will be discussed.

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“…Dynamical control methods based on the QZE are aimed at protecting the quantumness (coherence or entanglement) of the probe [45,63,64], but also at diagnosing the bath spectra [9,15,65] and transferring QI via noisy media [43,[66][67][68][69]. By contrast, AZE-based control is useful for fast, versatile and robust cooling of thermalized quantum systems [51][52][53]70,71].…”

Section: Bath-optimized Task-oriented Control (Botoc)mentioning

confidence: 99%

Quantum Sensing of Noisy and Complex Systems under Dynamical Control

2016

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Abstract:We review our unified optimized approach to the dynamical control of quantum-probe interactions with noisy and complex systems viewed as thermal baths. We show that this control, in conjunction with tools of quantum estimation theory, may be used for inferring the spectral and spatial characteristics of such baths with high precision. This approach constitutes a new avenue in quantum sensing, dubbed quantum noise spectroscopy.

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Local and bulk 13C hyperpolarization in nitrogen-vacancy-centred diamonds at variable fields and orientations

Cited by 106 publications

References 53 publications

Characterization of hyperfine interaction between an NV electron spin and a first-shellC13nuclear spin in diamond

Characterization of hyperfine interaction between an NV electron spin and a first-shellC13nuclear spin in diamond

Minireview on Nuclear Spin Polarization in Optically-Pumped Diamond Nitrogen Vacancy Centers

Quantum Sensing of Noisy and Complex Systems under Dynamical Control

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