Please use this identifier to cite or link to this item: https://doi.org/10.1088/1367-2630/17/9/093034
Title: Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble
Authors: Gulati G.K. 
Srivathsan B.
Chng B. 
Cerè A. 
Kurtsiefer C. 
Keywords: Four wave mixing
Optical beam splitters
Photons
Polarization
Quantum theory
Rubidium
Entangled photon pairs
Entangled polarization state
Four-wave-mixing process
Hyperfine levels
Polarization entanglement
Quantum beat
Quantum state tomography
Time resolved correlation
Quantum entanglement
Issue Date: 2015
Publisher: Institute of Physics Publishing
Citation: Gulati G.K., Srivathsan B., Chng B., Cerè A., Kurtsiefer C. (2015). Polarization entanglement and quantum beats of photon pairs from four-wave mixing in a cold 87Rb ensemble. New Journal of Physics 17 (9) : 93034. ScholarBank@NUS Repository. https://doi.org/10.1088/1367-2630/17/9/093034
Abstract: We characterize correlations in polarization and time of photon pairs generated from a cold cloud of 87Rb atoms via a four-wave mixing process in a cascade level scheme. Quantum state tomography reveals entangled polarization states of high purity for each of the decay paths through two different intermediate hyperfine levels. When allowing both decay paths, we observe quantum beats in time-resolved correlation measurements. © 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Source Title: New Journal of Physics
URI: https://scholarbank.nus.edu.sg/handle/10635/175281
ISSN: 1367-2630
DOI: 10.1088/1367-2630/17/9/093034
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