title: Coupling nitrogen-vacancy centers in diamond to superconducting flux qubits.
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.
authors.affiliation: Theory and Simulation of Materials Department, Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco 28049, Madrid, Spain.
authors.forename: D
authors.initials: D
authors.lastname: Marcos
authors.forename: M
authors.initials: M
authors.lastname: Wubs
authors.forename: J M
authors.initials: JM
authors.lastname: Taylor
authors.forename: R
authors.initials: R
authors.lastname: Aguado
authors.forename: M D
authors.initials: MD
authors.lastname: Lukin
authors.forename: A S
authors.initials: AS
authors.lastname: Sørensen