arxiv: 1111.5399 · v1 · pith:2GK2CCSQnew · submitted 2011-11-23 · 🪐 quant-ph · cond-mat.mes-hall· cond-mat.supr-con

Coherent coupling of a superconducting flux-qubit to an electron spin ensemble in diamond

Xiaobo Zhu , Shiro Saito , Alexander Kemp , Kosuke Kakuyanagi , Shin-ichi Karimoto , Hayato Nakano , William J. Munro , Yasuhiro Tokura

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Mark S. Everitt Kae Nemoto Makoto Kasu Norikazu Mizuochi Kouichi Semba

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classification 🪐 quant-ph cond-mat.mes-hallcond-mat.supr-con

keywords couplingcenterscoherentcolordiamondensembleflux-qubitnitrogen-vacancy

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Electron-spin nitrogen-vacancy color centers in diamond are a natural candidate to act as a quantum memory for superconducting qubits because of their large collective coupling and long coherence times. We report here the first demonstration of strong coupling and coherent exchange of a single quantum of energy between a flux-qubit and an ensemble of nitrogen-vacancy color centers.

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Coherent coupling of a superconducting flux-qubit to an electron spin ensemble in diamond

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