Abstract

Spin ensembles are promising candidates for quantum memory units because they have long coherence time. Controlling the coupling between spin ensembles is necessary and important in quantum information processing. In this Letter, we propose a method to realize tunable coupling between spin ensembles by a superconducting flux qubit acting as a coupler. The resulting coupling can be used to high-fidelity speed up the adiabatic transfer of quantum information.

© 2018 Optical Society of America

Coupling a single NV center to a superconducting flux qubit via a nanomechanical resonator

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Universal quantum gate with hybrid qubits in circuit quantum electrodynamics

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