| Optical precursor of a single photon. | |
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MedLine Citation:
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PMID: 21770570 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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We report the direct observation of optical precursors of heralded single photons with step- and square-modulated wave packets passing through cold atoms. Using electromagnetically induced transparency and the slow-light effect, we separate the single-photon precursor, which always travels at the speed of light in vacuum, from its delayed main wave packet. In the two-level superluminal medium, our result suggests that the causality holds for a single photon. |
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Authors:
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Shanchao Zhang; J F Chen; Chang Liu; M M T Loy; G K L Wong; Shengwang Du |
Publication Detail:
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Type: Journal Article Date: 2011-06-16 |
Journal Detail:
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Title: Physical review letters Volume: 106 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-07-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 243602 Citation Subset: IM |
Affiliation:
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Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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