Photon pair-state preparation with tailored spectral properties by spontaneous four-wave mixing in photonic-crystal fiber
Photon pair-state preparation with tailored spectral properties by spontaneous four-wave mixing in photonic-crystal fiber
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DOI：
10.1364/oe.15.014870
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发表时间：
2007-10-29
期刊：
影响因子：
3.8
通讯作者：
Walmsley, I. A.
中科院分区：
文献类型：
--
作者：
Garay-Palmett, K.;McGuinness, H. J.;Walmsley, I. A.
从理论上研究了光子晶体光纤中自发四波混频(SFWM)产生的光子对。我们表明，有可能设计出具有特定光谱关联(纠缠)特性的双光子态，适用于量子信息处理应用。我们关注的是在状态的双光子分量中没有表现出光谱相关性的情况，我们称之为因式分解，它允许在不需要光谱后滤波的情况下预示单光子纯态波包。我们发现，自发四波混频表现出显著的灵活性，允许更广泛的双光子态，包括超宽带、高度反关联的态。(C)2007年美国光学学会。
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. (C) 2007 Optical Society of America.