paper

Coupling Nitrogen Vacancy Centers in Diamond to Superconducting Flux Qubits

arXiv:1001.4048 · doi:10.1103/PhysRevLett.105.210501

Abstract

We propose a method to achieve coherent coupling between Nitrogen-vacancy (NV) centers in diamond and superconducting (SC) flux qubits. The resulting coupling can be used to create a coherent interaction between the spin states of distant NV centers mediated by the flux qubit. Furthermore, the magnetic coupling can be used to achieve a coherent transfer of quantum information between the flux qubit and an ensemble of NV centers. This enables a long-term memory for a SC quantum processor and possibly an interface between SC qubits and light.

Accepted in Phys. Rev. Lett. Updated text and Supplementary Material added

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