Single-Photon Stored-Light Interferometry

We demonstrate a single-photon stored-light interferometer, where a photon is stored in a laser-cooled atomic ensemble in the form of a Rydberg polariton with a spatial extent of \(10 \times1\times1\mu m^3\). The photon is subject to a Ramsey sequence, i.e. `split' into a superposition of two p...

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Published inarXiv.org
Main Authors Jiao, Yuechun, Spong, Nicholas L R, Hughes, Oliver D W, So, Chloe, Ilieva, Teodora, Weatherill, Kevin J, Adams, Charles S
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 13.08.2020
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ISSN2331-8422
DOI10.48550/arxiv.2008.04675

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Summary:We demonstrate a single-photon stored-light interferometer, where a photon is stored in a laser-cooled atomic ensemble in the form of a Rydberg polariton with a spatial extent of \(10 \times1\times1\mu m^3\). The photon is subject to a Ramsey sequence, i.e. `split' into a superposition of two paths. After a delay of up to 450 ns, the two paths are recombined to give an output dependent on their relative phase. The superposition time of 450 ns is equivalent to a free-space propagation distance of 135 m. We show that the interferometer fringes are sensitive to external fields, and suggest that stored-light interferometry could be useful for localized sensing applications.
Bibliography:SourceType-Working Papers-1
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ISSN:2331-8422
DOI:10.48550/arxiv.2008.04675