Broadband quantum memory in atomic ensembles

Kai Shinbrough, Donny R. Pearson, Bin Fang, Elizabeth A. Goldschmidt, Virginia O. Lorenz

Research output: Chapter in Book/Report/Conference proceedingChapter


Broadband quantum memory is critical to enabling the operation of emerging photonic quantum technology at high speeds. Here we review a central challenge to achieving broadband quantum memory in atomic ensembles—what we call the ‘linewidth-bandwidth mismatch’ problem—and the relative merits of various memory protocols and hardware used for accomplishing this task. We also review the theory underlying atomic ensemble quantum memory and its extensions to optimizing memory efficiency and characterizing memory sensitivity. Finally, we examine the state-of-the-art performance of broadband atomic ensemble quantum memories with respect to three key metrics: efficiency, memory lifetime, and noise.

Original languageEnglish (US)
Title of host publicationAdvances in Atomic, Molecular, and Optical Physics
EditorsLouis F. DiMauro, Hélène Perrin, Susanne F. Yelin
PublisherAcademic Press Inc.
Number of pages64
ISBN (Print)9780323992527
StatePublished - Jan 2023

Publication series

NameAdvances in Atomic, Molecular and Optical Physics
ISSN (Print)1049-250X


  • atomic ensembles
  • light stoppage & storage
  • light-matter interaction
  • quantum memory

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Electronic, Optical and Magnetic Materials


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