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Optics and Photonics News

Toward Quantum Control of Single Photons

Matthew D. Eisaman, Michael Fleischhauer, Mikhail D. Lukin, Alexander S. Zibrov

Published Jan 1, 2006• 7 citations
Publisher

Abstract

Researchers are exploring ways to use electromagnetically induced transparency on individual light quanta, laying the groundwork for intriguing applications in quantum information science that use photons as information carriers, and atomic ensembles as memory and processing nodes.
DOI
10.1364/opn.17.1.000022

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Quantum Optics and Single Photon Quantum Information Processing

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Poster presentation abstract.

•Jan 1, 2016•0 citations
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In this paper, an optical memory based on an ensemble of cold Cesium atoms interacting with light in the electromagnetically induced transparency (EIT) regime is studied in view of spatially multimode quantum storage. The interfacing protocol involves a control field, generating EIT for the very weak field that carries the quantum signal to be stored and enabling its mapping into the collective hyperfine coherence of the cold atomic ensemble. For the demonstration of multimode storage, the signal pulse at the single photon level is prepared in a mode with (OAM), while the control field is in a TEM00 mode. After the writing process, the information is kept in the memory register. In the retrieval phase, the information is read back from atoms to light and we show that these pulses at the single photon level with OAM can be stored and retrieved with a preserved spatial phase and a good efficiency.