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Quantum Memory for Microwave Photons in an Inhomogeneously Broadened Spin Ensemble

Quantum Memory for Microwave Photons in an Inhomogeneously Broadened Spin Ensemble

We propose a multi-mode quantum memory protocol able to store the quantum state of the field in a microwave resonator into an ensemble of electronic spins. The stored information is protected against inhomogeneous broadening of the spin ensemble by spin-echo techniques resulting in memory times orders of magnitude longer than …