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, Mark S. Everitt,, Kae Nemoto, Makoto Kasu, Norikazu Mizuochi, Kouichi Semba
TL;DR
This paper demonstrates the first strong and coherent coupling between a superconducting flux qubit and an ensemble of nitrogen-vacancy centers in diamond, advancing quantum memory integration.
Contribution
It introduces the first experimental realization of strong, coherent coupling between a flux qubit and NV center ensemble in diamond.
Findings
Achieved strong coupling between flux qubit and NV ensemble
Demonstrated coherent energy exchange
Potential for quantum memory applications
Abstract
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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Taxonomy
TopicsDiamond and Carbon-based Materials Research · Quantum optics and atomic interactions · Mechanical and Optical Resonators