Solid State Spin-Wave Quantum Memory for Time-Bin Qubits.

@article{Gndoan2015SolidSS,
  title={Solid State Spin-Wave Quantum Memory for Time-Bin Qubits.},
  author={Mustafa G{\"u}ndoğan and Patrick M. Ledingham and Kutlu Kutluer and Margherita Mazzera and Hugues de Riedmatten},
  journal={Physical review letters},
  year={2015},
  volume={114 23},
  pages={
          230501
        }
}
We demonstrate the first solid-state spin-wave optical quantum memory with on-demand read-out. Using the full atomic frequency comb scheme in a Pr(3+):Y2SiO5 crystal, we store weak coherent pulses at the single-photon level with a signal-to-noise ratio >10. Narrow-band spectral filtering based on spectral hole burning in a second Pr(3+):Y2SiO5 crystal is used to filter out the excess noise created by control pulses to reach an unconditional noise level of (2.0±0.3)×10(-3) photons per pulse. We… 

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