Abstract
AbstractFrequency-uncorrelated photon sources are rather important for quantum information science. They are not only suitable for storage in quantum memories, but also very useful for scalable linear optical quantum computing. In this chapter, we review preparations and applications of frequency-uncorrelated photon pairs. We first introduce the elimination of spectral correlation for the spontaneous parametric down-conversion (SPDC) sources by using the technique of group velocity mismatching. Next we make emphasis on discussing how to eliminate the frequency correlation for narrowband photons created from cavity-enhanced SPDC by pulse engineering. Finally we discuss applications of using the frequency uncorrelation technology to interfere independent photon sources.KeywordsPhoton PairEntangle PhotonSignal PhotonFrequency CorrelationGroup Velocity MismatchThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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