Storage and retrieval of THZ-bandwidth single photons using a room-temperature diamond quantum memory

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.114.053602
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TypeArticle
Journal titlePhysical Review Letters
ISSN0031-9007
Volume114
Issue5
Article number53602
SubjectBandwidth; Optical frequency conversion; Phonons; Heralded photons; Nonclassical photon statistics; Optical phonons; Processing applications; Raman transition; Spontaneous parametric down conversion; Photons
AbstractWe report the storage and retrieval of single photons, via a quantum memory, in the optical phonons of a room-temperature bulk diamond. The THz-bandwidth heralded photons are generated by spontaneous parametric down-conversion and mapped to phonons via a Raman transition, stored for a variable delay, and released on demand. The second-order correlation of the memory output is g(2)(0)=0.65±0.07, demonstrating a preservation of nonclassical photon statistics throughout storage and retrieval. The memory is low noise, high speed and broadly tunable; it therefore promises to be a versatile light-matter interface for local quantum processing applications.
Publication date
PublisherAmerican Physical Society
LanguageEnglish
AffiliationNational Research Council Canada; Security and Disruptive Technologies
Peer reviewedYes
NPARC number21275690
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Record identifierf8a388db-c7bd-4d65-97e3-a365c374f2f3
Record created2015-07-14
Record modified2016-05-09
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