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A High-Brightness Source of Narrowband, Identical-Photon Pairs.
- Source :
-
Science . 7/7/2006, Vol. 313 Issue 5783, p74-77. 4p. - Publication Year :
- 2006
-
Abstract
- We generated narrowband pairs of nearly identical photons at a rate of 5 × 104 pairs per second from a laser-cooled atomic ensemble inside an optical cavity. A two-photon interference experiment demonstrated that the photons could be made 90% indistinguishable, a key requirement for quantum information-processing protocols. Used as a conditional single-photon source, the system operated near the fundamental limits on recovery efficiency (57%), Fourier transform-limited bandwidth, and pair-generation-rate-limited suppression of two-photon events (factor of 33 below the Poisson limit). Each photon had a spectral width of 1.1 megahertz, ideal for interacting with atomic ensembles that form the basis of proposed quantum memories and logic. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00368075
- Volume :
- 313
- Issue :
- 5783
- Database :
- Academic Search Index
- Journal :
- Science
- Publication Type :
- Academic Journal
- Accession number :
- 21651736
- Full Text :
- https://doi.org/10.1126/science.1127676