Physics – Quantum Physics
Scientific paper
2007-09-20
Opt. Express 15, 14870-14886 (2007)
Physics
Quantum Physics
17 pages, 7 figures, submitted
Scientific paper
10.1364/OE.15.014870
We study theoretically the generation of photon pairs by spontaneous four-wave mixing (SFWM) in photonic crystal optical fiber. We show that it is possible to engineer two-photon states with specific spectral correlation (``entanglement'') properties suitable for quantum information processing applications. We focus on the case exhibiting no spectral correlations in the two-photon component of the state, which we call factorability, and which allows heralding of single-photon pure-state wave packets without the need for spectral post filtering. We show that spontaneous four wave mixing exhibits a remarkable flexibility, permitting a wider class of two-photon states, including ultra-broadband, highly-anticorrelated states.
Cohen Offir
Garay-Palmett Karina
Lundeen Jeff S.
McGuinness Hayden J.
McKinstrie C. J.
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