Zobrazeno 1 - 10
of 525
pro vyhledávání: '"Isoya J"'
Autor:
Zhou, L. Q., Patel, R. L., Frangeskou, A. C., Nikitin, A., Green, B. L., Breeze, B. G., Onoda, S., Isoya, J., Morley, G. W.
Publikováno v:
Phys. Rev. Applied 15, 024015 (2021)
We demonstrate a simple, robust and contactless method for non-destructive testing of magnetic materials such as steel. This uses a fiber-coupled magnetic sensor based on nitrogen vacancy centers (NVC) in diamond without magnetic shielding. Previous
Externí odkaz:
http://arxiv.org/abs/2011.02459
Autor:
Grezes, C., Kubo, Y., Julsgaard, B., Umeda, T., Isoya, J., Sumiya, H., Abe, H., Onoda, S., Ohshima, T., Nakamura, K., Diniz, I., Auffeves, A., Jacques, V., Roch, J. -F., Vion, D., Esteve, D., Moelmer, K., Bertet, P.
This article reviews efforts to build a new type of quantum device, which combines an ensemble of electronic spins with long coherence times, and a small-scale superconducting quantum processor. The goal is to store over long times arbitrary qubit st
Externí odkaz:
http://arxiv.org/abs/1510.06565
Autor:
Grezes, C., Julsgaard, B., Kubo, Y., Ma, W. L., Stern, M., Bienfait, A., Nakamura, K., Isoya, J., Onoda, S., Ohshima, T., Jacques, V., Vion, D., Esteve, D., Liu, R. B., Mølmer, K., Bertet, P.
Publikováno v:
Phys. Rev. A 92, 020301 (2015)
We report the storage of microwave pulses at the single-photon level in a spin-ensemble memory consisting of $10^{10}$ NV centers in a diamond crystal coupled to a superconducting LC resonator. The energy of the signal, retrieved $100\, \mu \mathrm{s
Externí odkaz:
http://arxiv.org/abs/1504.02220
Autor:
Sipahigil, Alp, Jahnke, Kay D., Rogers, Lachlan J., Teraji, T., Isoya, J., Zibrov, Alexander S., Jelezko, Fedor, Lukin, Mikhail D.
Publikováno v:
Phys. Rev. Lett. 113, 113602 (2014)
We demonstrate that silicon-vacancy (SiV) centers in diamond can be used to efficiently generate coherent optical photons with excellent spectral properties. We show that these features are due to the inversion symmetry associated with SiV centers, a
Externí odkaz:
http://arxiv.org/abs/1406.4268
Autor:
Yamamoto, T., Onoda, S., Ohshima, T., Teraji, T., Watanabe, K., Koizumi, S., Umeda, T., McGuinness, L. P., Müller, C., Naydenov, B., Dolde, F., Fedder, H., Honert, J., Markham, M. L., Twitchen, D. J., Wrachtrup, J., Jelezko, F., Isoya, J.
Publikováno v:
Phys. Rev. B 90, 081117 (2014)
Nitrogen impurities help to stabilize the negatively-charged-state of NV$^-$ in diamond, whereas magnetic fluctuations from nitrogen spins lead to decoherence of NV$^-$ qubits. It is not known what donor concentration optimizes these conflicting requ
Externí odkaz:
http://arxiv.org/abs/1405.5837
Autor:
Grezes, C., Julsgaard, B., Kubo, Y., Stern, M., Umeda, T., Isoya, J., Sumiya, H., Abe, H., Onoda, S., Ohshima, T., Jacques, V., Esteve, J., Vion, D., Esteve, D., Mølmer, K., Bertet, P.
A quantum memory at microwave frequencies, able to store the state of multiple superconducting qubits for long times, is a key element for quantum information processing. Electronic and nuclear spins are natural candidates for the storage medium as t
Externí odkaz:
http://arxiv.org/abs/1401.7939
Autor:
Waldherr, G., Wang, Y., Zaiser, S., Jamali, M., Schulte-Herbrueggen, T., Abe, H., Ohshima, T., Isoya, J., Neumann, P., Wrachtrup, J.
Publikováno v:
Nature 506, 204-207 (2014)
Hybrid quantum systems seek to combine the strength of its constituents to master the fundamental conflicting requirements of quantum technology: fast and accurate systems control together with perfect shielding from the environment, including the me
Externí odkaz:
http://arxiv.org/abs/1309.6424
Autor:
Yamamoto, T., Umeda, T., Watanabe, K., Onoda, S., Markham, M. L., Twitchen, D. J., Naydenov, B., McGuinness, L. P., Teraji, T., Koizumi, S., Dolde, F., Fedder, H., Honert, J., Wrachtrup, J., Ohshima, T., Jelezko, F., Isoya, J.
Publikováno v:
Physical Review B {\bf{88}}, 075206 (2013)
Spins of negatively charged nitrogen-vacancy (NV$^-$) defects in diamond are among the most promising candidates for solid-state qubits. The fabrication of quantum devices containing these spin-carrying defects requires position-controlled introducti
Externí odkaz:
http://arxiv.org/abs/1309.4316
Autor:
London, P., Scheuer, J., Cai, J. -M., Schwarz, I., Retzker, A., Plenio, M. B., Katagiri, M., Teraji, T., Koizumi, S., Isoya, J., Fischer, R., McGuinness, L. P., Naydenov, B., Jelezko, F.
Publikováno v:
Phys. Rev. Lett. 111, 067601 (2013)
We report the detection and polarization of nuclear spins in diamond at room temperature by using a single nitrogen-vacancy (NV) center. We use Hartmann-Hahn double resonance to coherently enhance the signal from a single nuclear spin while decouplin
Externí odkaz:
http://arxiv.org/abs/1304.4709
Autor:
Niemeyer, I., Shim, J. H., Zhang, J., Suter, D., Taniguchi, T., Teraji, T., Abe, H., Onoda, S., Yamamoto, T., Ohshima, T., Isoya, J., Jelezko, F.
Pulsed excitation of broad spectra requires very high field strengths if monochromatic pulses are used. If the corresponding high power is not available or not desirable, the pulses can be replaced by suitable low-power pulses that distribute the pow
Externí odkaz:
http://arxiv.org/abs/1301.2980