Generation of Pure-State Single-Photon Wavepackets by Conditional Preparation Based on Spontaneous Parametric Downconversion

By A. U’Ren, Christine Silberhorn, R. Erdmann, K. Banaszek, W. Grice, Ian A. Walmsley, Michael G. Raymer. 2006

201 citations recorded by the source corpus.

We study the conditional preparation of single photons based on parametric downconversion, where the detection of one photon from a given pair heralds the existence of a single photon in the conjugate mode. We derive conditions on the modal characteristics of the photon pairs, which ensure that the conditionally prepared single photons are quantum-mechanically pure. We propose specific experimental techniques that yield photon pairs ideally suited for single-photon conditional preparation.

View Paper: https://www.semanticscholar.org/paper/f9953169059650cf403ac4f79e8db178ab126af2

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1. B. Brecht
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Citations in the corpus

• Photon temporal modes: a complete framework for quantum information science (2015, background): “For the special case of a dispersion-engineered PDC that excites only a single pair of TMs (see, for instance [32–37]), the state from Eq.”