Coupling Nitrogen Vacancy Centers in Diamond to Superconducting Flux Qubits

Details Coupling Nitrogen Vacancy Centers in Diamond to Superconducting Flux Qubits Coupling Nitrogen Vacancy Centers in Diamond to Superconducting Flux Qubits

2010-01-22

arxiv.org/abs/1001.4048v2

Phys. Rev. Lett. 105, 210501 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

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

Scientific paper

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.

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