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Subnatural-Linewidth Polarization-Entangled Photon Pairs with Controllable Temporal Length.
- Source :
-
Physical Review Letters . 6/20/2014, Vol. 112 Issue 24, p243602-1-243602-5. 5p. - Publication Year :
- 2014
-
Abstract
- We demonstrate an efficient experimental scheme for producing polarization-entangled photon pairs from spontaneous four-wave mixing (SFWM) in a laser-cooled 85Rb atomic ensemble, with a bandwidth (as low as 0.8 MHz) much narrower than the rubidium atomic natural linewidth. By stabihzing the relative phase between the two SFWM paths in a Mach-Zehnder interferometer configuration, we are able to produce all four Bell states. These subnatural-linewidth photon pairs with polarization entanglement are ideal quantum information carriers for connecting remote atomic quantum nodes via efficient light-matter interaction in a photon-atom quantum network. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHOTON pairs
*BANDWIDTHS
*RUBIDIUM
*INTERFEROMETERS
*QUANTUM networks (Optics)
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 112
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 97086062
- Full Text :
- https://doi.org/10.1103/PhysRevLett.112.243602