Multiphoton detection using visible light photon counter
TLDR
In this paper, the authors investigated the capability of simultaneous detection of two photons generated by parametric down conversion and presented a high quantum efficiency (∼47%) detection with good time resolution.Abstract:
Visible light photon counters feature noise-free avalanche multiplication and narrow pulse height distribution for single photon detection events. Such a well-defined pulse height distribution for a single photon detection event, combined with the fact that the avalanche multiplication is confined to a small area of the whole detector, opens up the possibility for the simultaneous detection of two photons. In this letter, we investigated this capability using twin photons generated by parametric down conversion, and present a high quantum efficiency (∼47%) detection of two photons with good time resolution (∼2 ns), which can be distinguished from a single-photon incidence with a small bit-error rate (∼0.63%).read more
Citations
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Posted Content
Quantum repeaters based on atomic ensembles and linear optics
Nicolas Sangouard,Nicolas Sangouard,Christoph Simon,Christoph Simon,Hugues de Riedmatten,Hugues de Riedmatten,Hugues de Riedmatten,Nicolas Gisin +7 more
TL;DR: In this article, the authors compare the potential of different quantum repeater protocols quantitatively, with a focus on the most immediate goal of outperforming the direct transmission of photons, and compare different approaches to realize quantum repeaters.
References
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