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Superconducting Qubits Photonic Quantum Computing Quantum Readout Measurement Hardware Entanglement Theory Quantum Correlations

Eight-fold signal amplification of a superconducting nanowire single-photon detector using a multiple-avalanche architecture

arXiv

Authors: Qingyuan Zhao, Adam McCaughan, Andrew Dane, Faraz Najafi, Francesco Bellei, Domenico De Fazio, Kristen Sunter, Yachin Ivry, Karl K. Berggren

Year

2014

Paper ID

48223

Status

Preprint

Abstract Read

~2 min

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Abstract

Superconducting nanowire avalanche single-photon detectors (SNAPs) with n parallel nanowires are advantageous over single-nanowire detectors because their output signal amplitude scales linearly with n. However, the SNAP architecture has not been viably demonstrated for n > 4. To increase n for larger signal amplification, we designed a multi-stage, successive-avalanche architecture which used nanowires, connected via choke inductors in a binary-tree layout. We demonstrated an avalanche detector with n = 8 parallel nanowires and achieved eight-fold signal amplification, with a timing jitter of 54 ps.

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Superconducting nanowire avalanche single-photon detectors (SNAPs) with n parallel nanowires are advantageous over single-nanowire detectors because their output signal...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1408.1124 [2] arXiv https://arxiv.org/abs/1408.1124 [3] Publisher https://arxiv.org/abs/1408.1124

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