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Proceedings Paper

The influences that spatial coherence of the pump beam imposes on the properties of entangled photon pairs
Author(s): Yaseera Ismail; Stuti Joshi; Francesco Petruccione
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Paper Abstract

Two photon fields to date, are generated by a fully coherent pump beam. We have experimentally studied the generation of polarisation entangled single photon pairs using a partially coherent pump beam. The spatial coherence effects of the pump beam on the coincidence detection of an entangled single photon source was investigated. The fully coherent coincidence detection was compared to the partial coherence detection. The results show that the partial coherence of the pump beam leads to an increase in coincidence detection. The coherence properties of a beam is significant for freespace optical transmission specifically for free-space quantum communication over long distances.

Paper Details

Date Published: 24 October 2016
PDF: 7 pages
Proc. SPIE 9996, Quantum Information Science and Technology II, 99960T (24 October 2016); doi: 10.1117/12.2241787
Show Author Affiliations
Yaseera Ismail, Univ. of KwaZulu-Natal (South Africa)
Stuti Joshi, Univ. of KwaZulu-Natal (South Africa)
Francesco Petruccione, Univ. of KwaZulu-Natal (South Africa)
National Institute for Theoretical Physics (South Africa)

Published in SPIE Proceedings Vol. 9996:
Quantum Information Science and Technology II
Mark T. Gruneisen; Miloslav Dusek; John G. Rarity, Editor(s)

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