• Letter
  • Open Access

Initialization protocol for efficient quantum memories using resolved hyperfine structure

James S. Stuart, Morgan Hedges, Rose Ahlefeldt, and Matthew Sellars
Phys. Rev. Research 3, L032054 – Published 27 August 2021

Abstract

We describe a quantum memory spectral preparation strategy that optimizes memory efficiency and bandwidth in materials such as Er3+167:Y2SiO5 in a high-field regime, where the hyperfine structure is resolved. We demonstrate the method in Er3+167:Y2SiO5 by preparing spectrally isolated 18-dB-absorbing features on a <1 dB background. Using these features we create an atomic frequency comb and show a quantum storage of 200-ns pulses with 22% efficiency, limited by the background absorption which arises from laser instability. We describe the experimental improvements needed to reach the material limits: O(1)-s spin-state storage, O(100)MHz bandwidth, and >90% efficiency.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 21 April 2021
  • Revised 8 July 2021
  • Accepted 21 July 2021

DOI:https://doi.org/10.1103/PhysRevResearch.3.L032054

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

James S. Stuart, Morgan Hedges, Rose Ahlefeldt, and Matthew Sellars*

  • Centre for Quantum Computation and Communications Technology, Research School of Physics, Australian National University, Canberra, ACT, Australia

  • *Corresponding author: matthew.sellars@anu.edu.au

Article Text

Click to Expand

References

Click to Expand
Issue

Vol. 3, Iss. 3 — August - October 2021

Subject Areas
Reuse & Permissions

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Research

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

×

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×