A Quantum Computer Based on NV Centers in Diamond: Optically Detected Nutations of Single Electron and Nuclear Spins

Низовцев, А. П.

doi:10.1134/1.2034610

Cited by 71 publications

(41 citation statements)

References 22 publications

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“…This is in good correspondence with a value of 0.5 x 1/τ given by Nizovtsev et.al. [34]. They have also proposed that there is much slower transfer from the 3 E z' state to the singlet and we agree with this conclusion.…”

Section: Comparison With Other Worksupporting

confidence: 91%

“…For completeness other transitions allowed in low symmetry are shown as dashed lines. The low symmetry situation is similar to that proposed by others [10,33,34] and to assist comparison we adopt their shortened notation. The ground spin states are defined as x, y and z; the excited triplet states as x', y' and z' and the singlet level as s. In the following experiments we determine the values of the parameters using bulk samples.…”

Section: Nitrogen-vacancy Centermentioning

confidence: 80%

“…Wrachtrup and co-workers at University of Stuttgart and at the National Academy of Sciences of Belarus have presented an exciting range of single site measurements including demonstrating aspects of quantum computing [7,8,9,10,11,33,34,44,45]. In the model adopted to interpret their results they have spin as a good quantum number and spin-orbit interaction is neglected.…”

Section: Comparison With Other Workmentioning

confidence: 99%

“…The situation for transfer out of the singlet level is different and there is some confusion. There is no agreement when the singlet is taken to have the long 0.275 s lifetime and when there is no decay from this singlet to the ground state [34]. In this situation the spin polarization and transfer out of the singlet has to be through thermal back transfer plus optically driven processes.…”

Section: Comparison With Other Workmentioning

confidence: 99%

See 3 more Smart Citations

Nitrogen-vacancy center in diamond: Model of the electronic structure and associated dynamics

2006

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Symmetry considerations are used in presenting a model of the electronic structure and the associated dynamics of the nitrogen-vacancy center in diamond. The model accounts for the occurrence of optically induced spin polarization, for the change of emission level with spin polarization and for new measurements of transient emission. The rate constants given are in variance to those reported previously.

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Section: Comparison With Other Worksupporting

confidence: 91%

Section: Nitrogen-vacancy Centermentioning

confidence: 80%

Section: Comparison With Other Workmentioning

confidence: 99%

Section: Comparison With Other Workmentioning

confidence: 99%

See 2 more Smart Citations

Nitrogen-vacancy center in diamond: Model of the electronic structure and associated dynamics

2006

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“…The origin of the strong spin polarisation has long been subject to intense discussion. Meanwhile it seems to be clear that intersystem crossing to the excited singlet state plays an important role (Harrison et al, 2004;Nizovtsev et al, 2005;. Spin-orbit coupling is not playing an essential role in formation of the excited state fine structure (Martin, 1999).…”

Section: Nv Centers Photophysics and Spin Statesmentioning

confidence: 99%

Quantum Information Processing with Diamond

Jelezko¹,

Wrachtrup²

2014

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Quantum computing is an attractive and multidisciplinary field, which became a focus for experimental and theoretical research during last decade. Among other systems, like ions in traps or superconducting circuits, solid-states based qubits are considered to be promising candidates for first experimental tests of quantum hardware. Here we report recent progress in quantum information processing with point defect in diamond. Qubits are defined as single spin states (electron or nuclear). This allows exploring long coherence time (up to seconds for nuclear spins at cryogenic temperatures). In addition, the optical transition between ground and excited electronic states allows coupling of spin degrees of freedom to the state of the electromagnetic field. Such coupling gives access to the spin state readout via spin-selective scattering of photon. This also allows using of spin state as robust memory for flying qubits (photons).2

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Photonic-crystal-fiber-coupled photoluminescence interrogation of nitrogen vacancies in diamond nanoparticles

et al. 2011

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A photonic-crystal fiber is used to demonstrate a fully fiber-integrated optical interrogation of nitrogen vacancies in diamond nanoparticles, where both pump radiation and the photoluminescent response of nitrogen vacancies are coupled to the fiber modes. A properly designed fiber is shown to provide a high-contrast guided-mode-coupled zero-phonon-line photoluminescent response from nitrogen vacancies, which is at least an order of magnitude higher than the Raman background signal from the fiber. Spectral intensity, arb. units 0 0.2 0.4 0.6 0.8 1.0 900 850 800 750 700 650 600 500 550 Wavelength, nm Magn 4000× WD 5 μm 13.2Photoluminescence spectra of (filled circles) NV-diamond nanoparticles in a photonic-crystal fiber (shown in the inset) and (solid line) a free ensemble of NV-diamond nanoparticles in a liquid

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A Quantum Computer Based on NV Centers in Diamond: Optically Detected Nutations of Single Electron and Nuclear Spins

Cited by 71 publications

References 22 publications

Nitrogen-vacancy center in diamond: Model of the electronic structure and associated dynamics

Nitrogen-vacancy center in diamond: Model of the electronic structure and associated dynamics

Quantum Information Processing with Diamond

Photonic-crystal-fiber-coupled photoluminescence interrogation of nitrogen vacancies in diamond nanoparticles

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