Storage and retrieval of microwave fields at the single-photon level in a spin ensemble
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2015-08-07 |
| Journal | Physical Review A |
| Authors | CÊcile Grèzes, Brian Julsgaard, Yuimaru Kubo, Wen-Long Ma, Michael Stern |
| Institutions | Institute of Theoretical Physics, Centre National de la Recherche Scientifique |
| Citations | 57 |
Abstract
Section titled âAbstractâWe report the storage of microwave pulses at the single-photon level in a\nspin-ensemble memory consisting of $10^{10}$ NV centers in a diamond crystal\ncoupled to a superconducting LC resonator. The energy of the signal, retrieved\n$100\, \mu \mathrm{s}$ later by spin-echo techniques, reaches $0.3\%$ of the\nenergy absorbed by the spins, and this storage efficiency is quantitatively\naccounted for by simulations. This figure of merit is sufficient to envision\nfirst implementations of a quantum memory for superconducting qubits.\n