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Updated: May 21, 2026
Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
Temporally multiplexed storage of images in a gradient echo memory
Quentin Glorieux1, Jeremy B Clark, Alberto M Marino
1Quantum Measurement Division, National Institute of Standards and Technology and Joint Quantum Institute, NIST, and the University of Maryland, Gaithersburg, MD 20899, USA.quentin.glorieux@nist.gov
Abstract:
We study the storage and retrieval of images in a hot atomic vapor using the gradient echo memory protocol. We demonstrate that this technique allows for the storage of multiple spatial modes. We study both spatial and temporal multiplexing by storing a sequence of two different images in the atomic vapor. The effect of atomic diffusion on the spatial resolution is discussed and characterized experimentally. For short storage time a normalized spatial cross-correlation between a retrieved image and its input of 88 % is reported.
