Storage and retrieval of microwave fields at the single-photon level in a spin ensemble - Archive ouverte HAL Access content directly
Journal Articles Physical Review A : Atomic, molecular, and optical physics Year : 2015

Storage and retrieval of microwave fields at the single-photon level in a spin ensemble

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Abstract

We report the storage of microwave pulses at the single-photon level in a spin-ensemble memory consisting of 10 10 nitrogen-vacancy centers in a diamond crystal coupled to a superconducting LC resonator. The energy of the signal, retrieved 100 μs later by spin-echo techniques, reaches 0.3% of the energy absorbed by the spins. This 0.3% storage efficiency is quantitatively accounted for by simulations. This figure of merit is sufficient to envision first implementations of a quantum memory for superconducting qubits.
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Dates and versions

cea-01366672 , version 1 (15-09-2016)

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C. Grezes, B. Julsgaard, Y. Kubo, W. L. Ma, M. Stern, et al.. Storage and retrieval of microwave fields at the single-photon level in a spin ensemble. Physical Review A : Atomic, molecular, and optical physics, 2015, 92, pp.020301. ⟨10.1103/PhysRevA.92.020301⟩. ⟨cea-01366672⟩
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