Sensitive magnetic control of ensemble nuclear spin hyperpolarization in diamond.
Haijing Wang,Chang S. Shin,Chang S. Shin,Claudia E. Avalos,Claudia E. Avalos,Scott J. Seltzer,Scott J. Seltzer,Dmitry Budker,Dmitry Budker,Alexander Pines,Alexander Pines,Vikram S. Bajaj,Vikram S. Bajaj +12 more
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TLDR
In this paper, the authors showed complete polarization of nuclei located near optically polarized nitrogen-vacancy centres in diamond, and predicted and observed a reversal of the nuclear spin polarization with only a few millitesla change in the magnetic field.Abstract:
Dynamic nuclear polarization, which transfers the spin polarization of electrons to nuclei, is routinely applied to enhance the sensitivity of nuclear magnetic resonance. This method is particularly useful when spin hyperpolarization can be produced and controlled optically or electrically. Here we show complete polarization of nuclei located near optically polarized nitrogen-vacancy centres in diamond. Close to the ground-state level anti-crossing condition of the nitrogen-vacancy electron spins, (13)C nuclei in the first shell are polarized in a pattern that depends sensitively upon the magnetic field. Based on the anisotropy of the hyperfine coupling and of the optical polarization mechanism, we predict and observe a reversal of the nuclear spin polarization with only a few millitesla change in the magnetic field. This method of magnetic control of high nuclear polarization at room temperature can be applied in sensitivity enhanced nuclear magnetic resonance of bulk nuclei, nuclear-based spintronics, and quantum computation in diamond.read more
Citations
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Nuclear magnetic resonance spectroscopy with single spin sensitivity
Christoph Müller,Xi Kong,Jianming Cai,K. Melentijević,Alastair Stacey,Matthew Markham,Daniel J. Twitchen,Junichi Isoya,S. Pezzagna,Jan Meijer,Jiangfeng Du,Martin B. Plenio,Boris Naydenov,Liam P. McGuinness,Fedor Jelezko +14 more
TL;DR: This work realizes strong coupling between an atomic (nitrogen–vacancy) sensor and sample nuclei to perform nuclear magnetic resonance on four 29Si spins, and exploits the field gradient created by the diamond atomic sensor, in concert with compressed sensing, to realize imaging protocols, enabling individualuclei to be located with Angstrom precision.
Journal ArticleDOI
High-fidelity spin and optical control of single silicon-vacancy centres in silicon carbide
Roland Nagy,Matthias Niethammer,Matthias Widmann,Yu-Chen Chen,Péter Udvarhelyi,Péter Udvarhelyi,Cristian Bonato,Jawad ul Hassan,Robin Karhu,Ivan Gueorguiev Ivanov,Nguyen Tien Son,Jeronimo R. Maze,Takeshi Ohshima,Öney O. Soykal,Adam Gali,Adam Gali,Sang-Yun Lee,Florian Kaiser,Jörg Wrachtrup +18 more
TL;DR: High-fidelity optical initialization and coherent spin control are demonstrated, which are exploited to show coherent coupling to single nuclear spins with ∼1 kHz resolution and makes this defect a prime candidate for realising memory-assisted quantum network applications using semiconductor-based spin-to-photon interfaces and coherently coupled nuclear spins.
Journal ArticleDOI
Bulk nuclear polarization enhanced at room temperature by optical pumping.
Ran Fischer,Christian O. Bretschneider,Paz London,Dmitry Budker,Dmitry Budker,David Gershoni,Lucio Frydman +6 more
TL;DR: Positive and negative enhanced polarizations were obtained, with a generally complex but predictable dependence on the magnetic field during optical pumping, and this (13)C room temperature polarizing strategy provides a promising new addition to existing nuclear hyperpolarization techniques.
Journal ArticleDOI
Room-temperature in situ nuclear spin hyperpolarization from optically pumped nitrogen vacancy centres in diamond
Jonathan King,Jonathan King,Keunhong Jeong,Keunhong Jeong,Christophoros C. Vassiliou,Christophoros C. Vassiliou,Chang S. Shin,Chang S. Shin,Ralph H. Page,Claudia E. Avalos,Claudia E. Avalos,Hai-Jing Wang,Hai-Jing Wang,Alexander Pines,Alexander Pines +14 more
TL;DR: In this paper, the authors reported bulk, room-temperature hyperpolarization of (13)C nuclear spins observed via high-field magnetic resonance, harnessing the high optically induced spin polarization of diamond nitrogen vacancy centres at room temperature in combination with dynamic nuclear polarization.
Journal ArticleDOI
Local and bulk 13 C hyperpolarization in nitrogen-vacancy-centred diamonds at variable fields and orientations
Gonzalo A. Álvarez,Christian O. Bretschneider,Ran Fischer,Paz London,Hisao Kanda,Shinobu Onoda,Junichi Isoya,David Gershoni,Lucio Frydman +8 more
TL;DR: This work reports an approach for achieving efficient electron-13C spin-alignment transfers, compatible with a broad range of magnetic field strengths and field orientations with respect to the diamond crystal, and opens new perspectives for applications of diamond nitrogen-vacancy centres in nuclear magnetic resonance, and in quantum information processing.
References
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