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  Many-body decoherence dynamics and optimized operation of a single-photon switch

Murray, C., Gorshkov, A. V., & Pohl, T. (2016). Many-body decoherence dynamics and optimized operation of a single-photon switch. New Journal of Physics, 18: 092001. doi:10.1088/1367-2630/18/9/092001.

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 Creators:
Murray, C1, Author              
Gorshkov, A. V.2, Author
Pohl, Thomas1, Author              
Affiliations:
1Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              
2external, ou_persistent22              

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 MPIPKS: Light-matter interaction
 Abstract: Wedevelop a theoretical framework to characterize the decoherence dynamics due to multi-photon scattering in an all-optical switch based on Rydberg atom induced nonlinearities. By incorporating the knowledge of this decoherence process into optimal photon storage and retrieval strategies, we establish optimized switching protocols for experimentally relevant conditions, and evaluate the corresponding limits in the achievable fidelities. Based on these results we work out a simplified description that reproduces recent experiments (Nat. Commun. 7 12480) and provides a new interpretation in terms of many-body decoherence involving multiple incident photons and multiple gate excitations forming the switch. Aside from offering insights into the operational capacity of realistic photon switching capabilities, our work provides a complete description of spin wave decoherence in a Rydberg quantum optics setting, and has immediate relevance to a number of further applications employing photon storage in Rydberg media.

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 Dates: 2016-09-132016-09-13
 Publication Status: Published in print
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 Identifiers: DOI: 10.1088/1367-2630/18/9/092001
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Title: New Journal of Physics
  Abbreviation : New J. Phys.
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 18 Sequence Number: 092001 Start / End Page: - Identifier: ISSN: 1367-2630
CoNE: https://pure.mpg.de/cone/journals/resource/954926913666