Free-space photonic quantum memory

Nathan T. Arnold, Michelle Victora, Michael E. Goggin, Paul G. Kwiat

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Photonic quantum memories will play an essential role in several quantum information protocols, including distributed quantum computing, quantum sensing, and the synchronization of repeater nodes. Most photonic memories operate by storing the photon in matter-based systems, but those approaches have limitations. Namely, they are inherently narrow bandwidth, often require costly overhead in the form of cryogenics, and typically have low retrieval efficiency into single-mode fiber. In this work, we develop a photonic quantum memory that operates at room temperature in free space, allowing us to avoid the aforementioned drawbacks.

Original languageEnglish (US)
Title of host publicationQuantum Computing, Communication, and Simulation III
EditorsPhilip R. Hemmer, Alan L. Migdall
ISBN (Electronic)9781510659971
StatePublished - 2023
EventQuantum Computing, Communication, and Simulation III 2023 - San Francisco, United States
Duration: Jan 29 2023Feb 2 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceQuantum Computing, Communication, and Simulation III 2023
Country/TerritoryUnited States
CitySan Francisco


  • Delay Line
  • Herriott Cell
  • Quantum Buffer
  • Quantum Memory
  • Quantum Repeater

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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