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Photonic Quantum Computing

Broadband chip-based source of a quantum noise with electrically-controllable beam splitter

arXiv
Authors: E. A. Vashukevich, V. V. Lebedev, I. V. Ilichev, P. M. Agruzov, A. V. Shamrai, V. M. Petrov, T. Yu. Golubeva

Year

2021

Paper ID

61418

Status

Preprint

Abstract Read

~2 min

Abstract Words

90

Citations

N/A

Abstract

For the first time, the theory and practical realization of a broadband quantum noise generator based on original integrated optical beam splitter in the form of a Mach-Zehnder interferometer is demonstrated. The beam splitter with a double output, made on a lithium niobate substrate, provided accurate electro-optical balancing of the homodyne quantum noise detection circuit. According to our knowledge, the experimentally obtained excess of quantum noise over classical noise by 12 dB in the frequency band over 4 GHz, which is the best parameters of quantum noise generators known from the literature.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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  • For the first time, the theory and practical realization of a broadband quantum noise generator based on original integrated optical beam splitter in the form of a Mach-Zehnder...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2109.09570 [2] arXiv https://arxiv.org/abs/2109.09570 [3] Publisher https://arxiv.org/abs/2109.09570

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