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

C. Grezes; B. Julsgaard; Y. Kubo; W. L. Ma; M. Stern; A. Bienfait; K. Nakamura; J. Isoya; S. Onoda; T. Ohshima; V. Jacques; D. Vion; D. Esteve; R. B. Liu; K. Mølmer; P. Bertet

doi:10.1103/PhysRevA.92.020301

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

Quantum Physics 2015-08-12 v1

Authors: C. Grezes , B. Julsgaard , Y. Kubo , W. L. Ma , M. Stern , A. Bienfait , K. Nakamura , J. Isoya , S. Onoda , T. Ohshima , V. Jacques , D. Vion , D. Esteve , R. B. Liu , K. Mølmer , P. Bertet

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report the storage of microwave pulses at the single-photon level in a spin-ensemble memory consisting of $10^{10}$ NV centers in a diamond crystal coupled to a superconducting LC resonator. The energy of the signal, retrieved $100\, \mu \mathrm{s}$ later by spin-echo techniques, reaches $0.3\%$ of the energy absorbed by the spins, and this 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.

Keywords

quantum memory spin ensemble microwave storage single-photon level NV center superconducting qubit spin-echo technique

Cite

@article{arxiv.1504.02220,
  title  = {Storage and retrieval of microwave fields at the single-photon level in a spin ensemble},
  author = {C. Grezes and B. Julsgaard and Y. Kubo and W. L. Ma and M. Stern and A. Bienfait and K. Nakamura and J. Isoya and S. Onoda and T. Ohshima and V. Jacques and D. Vion and D. Esteve and R. B. Liu and K. Mølmer and P. Bertet},
  journal= {arXiv preprint arXiv:1504.02220},
  year   = {2015}
}

Comments

6 pages

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

Abstract

Keywords

Cite

Comments

Related papers