Improving the fidelity of single photon preparation from conditional down-conversion via asymmetric multiport detection

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dc.creatorRohde, Peter P
dc.date2007-03-26
dc.date.accessioned2026-07-07T07:53:58Z
dc.date.available2026-07-07T07:53:58Z
dc.descriptionWe discuss the conditional preparation of single photons via parametric down-conversion. This technique is commonly used as a single photon source in modern quantum optics experiments. A significant problem facing this technique is the inability of present day photo-detectors to resolve photon number. This results in mixing with higher photon number terms. To overcome this several techniques have been proposed, including multi-port detection and time-division multiplexing. These techniques help approximate number resolving detection even when using non-number resolving detectors. In this paper we focus on 2-port detection, the simplest such scheme. We show that by making the 2-port device asymmetric the fidelity of prepared photons can be improved.
dc.description2 pages
dc.identifierhttps://arxiv.org/abs/quant-ph/0703238
dc.identifierhttp://arxiv.org/abs/quant-ph/0703238
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126430
dc.subjectQuantum Physics
dc.titleImproving the fidelity of single photon preparation from conditional down-conversion via asymmetric multiport detection
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