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Absolute X-ray reflectivity of chemically vapor deposited (CVD) diamond single crystals was measured in the Laue geometry in the double-crystal non-dispersive setting with an asymmetric Si beam conditioner crystal. The measurements were…

材料科学 · 物理学 2018-05-22 S. Stoupin , J. P. C. Ruff , T. Krawczyk , K. D. Finkelstein

Recently there have been several theoretical and experimental studies of the prospects for magnetic field sensors based on crystal defects, especially nitrogen vacancy (NV) centres in diamond. Such systems could potentially be incorporated…

材料科学 · 物理学 2011-11-15 Marcus Schaffry , Erik M. Gauger , John J. L. Morton , Simon C. Benjamin

Electrically-active defects have a significant impact on the performance of electronic devices based on wide band-gap materials such as diamond. This issue is ubiquitous in diamond science and technology, since the presence of charge traps…

Nuclear spins near group-IV defects in diamond are promising candidates for quantum memories in quantum network applications. Here, we demonstrate high-fidelity control of a single $^{13}$C nuclear spin coupled to a tin-vacancy (SnV) center…

In this paper we give a covariant expression for Aharonov-Casher phase. This expression is a combination of the canonical electric field, Aharonov-Casher phase plus a magnetic field phase shift. We use this covariant expression for the…

高能物理 - 理论 · 物理学 2016-01-20 Douglas Singleton , Jaryd Ulbricht

We propose a high efficiency high fidelity measurement of the ground state spin of a single NV center in diamond, using the effects of cavity quantum electrodynamics. The scheme we propose is based in the one dimensional atom or Purcell…

量子物理 · 物理学 2015-03-13 A. Young , C. Y. Hu , L. Marseglia , J. P. Harrison , J. L. O'Brien , J. G. Rarity

The nitrogen-vacancy (N-V) center in diamond is promising as an electron spin qubit due to its long-lived coherence and optical addressability. The ground state is a spin triplet with two levels ($m_s = \pm 1$) degenerate at zero magnetic…

其他凝聚态物理 · 物理学 2007-10-15 T. P. Mayer Alegre , C. Santori , G. Medeiros-Ribeiro , R. G. Beausoleil

Single-crystal diamond cavity optomechanical devices are a promising example of a hybrid quantum system: by coupling mechanical resonances to both light and electron spins, they can enable new ways for photons to control solid state qubits.…

We demonstrate the time reversal Aharonov-Casher (AC) effect in small arrays of mesoscopic semiconductor rings. By using an electrostatic gate we can control the spin precession rate and follow the AC phase over several interference…

介观与纳米尺度物理 · 物理学 2009-11-11 Tobias Bergsten , Toshiyuki Kobayashi , Yoshiaki Sekine , Junsaku Nitta

Individual, luminescent point defects in solids so called color centers are atomic-sized quantum systems enabling sensing and imaging with nanoscale spatial resolution. In this overview, we introduce nanoscale sensing based on individual…

介观与纳米尺度物理 · 物理学 2017-05-11 Ettore Bernardi , Richard Nelz , Selda Sonusen , Elke Neu

Nitrogen-vacancy (NV) center in diamond is a promising quantum sensor with remarkably versatile sensing capabilities. While scanning NV magnetometry is well-established, NV electrometry has been so far limited to bulk diamonds. Here we…

量子物理 · 物理学 2022-10-12 Ziwei Qiu , Assaf Hamo , Uri Vool , Tony X. Zhou , Amir Yacoby

Devices relying on microwave circuitry form a cornerstone of many classical and emerging quantum technologies. A capability to provide in-situ, noninvasive and direct imaging of the microwave fields above such devices would be a powerful…

Measuring the photoluminescence of defects in crystals is a common experimental technique for analysis and identification. However, current theoretical simulations typically require the simulation of a large number of atoms to eliminate…

介观与纳米尺度物理 · 物理学 2021-02-03 Akib Karim , Igor Lyskov , Salvy P. Russo , Alberto Peruzzo

Diamond optomechanical crystal (OMC) devices with embedded color center spins are promising platforms for a broad range of applications in quantum sensing, networking, and computing applications, offering an interface between a…

Electron spins in solids constitute remarkable quantum sensors. Individual defect centers in diamond were used to detect individual nuclear spins with nanometer scale resolution, and ensemble magnetometers rival SQUID and vapor cell…

The nitrogen-vacancy (N-V) center in diamond is a promising atomic-scale system for solid-state quantum information processing. Its spin-dependent photoluminescence has enabled sensitive measurements on single N-V centers, such as: electron…

其他凝聚态物理 · 物理学 2015-06-25 R. J. Epstein , F. M. Mendoza , Y. K. Kato , D. D. Awschalom

We use a combination of microwave fields and free precession to drive the spin of a nitrogen-vacancy (NV) center in diamond on different trajectories on the Bloch sphere, and investigate the physical significance of the frame-dependent…

The coherent behavior of the single electron and single nuclear spins of a defect center in diamond and a 13C nucleus in its vicinity, respectively, are investigated. The energy levels associated with the hyperfine coupling of the electron…

量子物理 · 物理学 2009-11-10 I. Popa , T. Gaebel , M. Domhan , C. Wittmann , F. Jelezko , J. Wrachtrup

Characterizing the local internal environment surrounding solid-state spin defects is crucial to harnessing them as nanoscale sensors of external fields. This is especially germane to the case of defect ensembles which can exhibit a complex…

Shallow nitrogen-vacancy (NV) centers in diamond are promising for nano-magnetometry for they can be placed proximate to targets. To study the intrinsic magnetic properties, zero-field magnetometry is desirable. However, for shallow NV…

介观与纳米尺度物理 · 物理学 2021-09-14 Ning Wang , Chu-Feng Liu , Jing-Wei Fan , Xi Feng , Weng-Hang Leong , Amit Finkler , Andrej Denisenko , Jörg Wrachtrup , Quan Li , Ren-Bao Liu