Atomic quantum memories for light
A.S. Sheremet (1), O.S. Mishina (2), E. Giacobino (2), D.V., Kupriyanov (1) ((1) Department of Theoretical Physics, State Polytechnic, University, St.-Petersburg, Russia, (2) Laboratoire Kastler Brossel,, Universite Pierre et Marie Curie, Ecole Normale Superieure, CNRS, Paris,
TL;DR
This paper investigates atomic quantum memories for light using stimulated Raman processes, highlighting how hyperfine interactions can enhance efficiency and comparing storage requirements for different photon pulse types.
Contribution
It introduces a theoretical model showing hyperfine interactions improve quantum memory efficiency and analyzes storage needs for single and multi-photon pulses.
Findings
Hyperfine interactions positively affect quantum memory efficiency.
Theoretical predictions for optimized quantum memory performance.
Comparison of storage requirements for different photon pulse types.
Abstract
We consider the coherent stimulated Raman process developing in an optically dense and disordered atomic medium in application to the quantum memory scheme. Our theoretical model predicts that the hyperfine interaction in the excited state of alkali atoms can positively affect on the quantum memory efficiency. Based on the concept of the coherent information transfer we analyze and compare the memory requirements for storage of single photon and macroscopic multi-photon light pulses.
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Taxonomy
TopicsQuantum optics and atomic interactions · Optical and Acousto-Optic Technologies · Laser-Matter Interactions and Applications