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High-speed thin-film lithium niobate quantum processor driven by a solid-state quantum emitter

Scalable photonic quantum computing architectures pose stringent requirements on photonic processing devices. The needs for low-loss high-speed reconfigurable circuits and near-deterministic resource state generators are some of the most challenging requirements. Here, we develop an integrated photo...

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Main Authors: Sund, Patrik I. (Author) , Lomonte, Emma (Author) , Paesani, Stefano (Author) , Wang, Ying (Author) , Carolan, Jacques (Author) , Bart, Nikolai (Author) , Wieck, Andreas D. (Author) , Ludwig, Arne (Author) , Midolo, Leonardo (Author) , Pernice, Wolfram (Author) , Lodahl, Peter (Author) , Lenzini, Francesco (Author)
Format: Article (Journal)
Language:English
Published: May 2023
In: Science advances
Year: 2023, Volume: 9, Issue: 19, Pages: 1-8
ISSN:2375-2548
DOI:10.1126/sciadv.adg7268
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1126/sciadv.adg7268
Verlag, lizenzpflichtig, Volltext: https://www.science.org/doi/10.1126/sciadv.adg7268
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Author Notes:Patrik I. Sund, Emma Lomonte, Stefano Paesani, Ying Wang, Jacques Carolan, Nikolai Bart, Andreas D. Wieck, Arne Ludwig, Leonardo Midolo, Wolfram H.P. Pernice, Peter Lodahl, Francesco Lenzini
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Summary:Scalable photonic quantum computing architectures pose stringent requirements on photonic processing devices. The needs for low-loss high-speed reconfigurable circuits and near-deterministic resource state generators are some of the most challenging requirements. Here, we develop an integrated photonic platform based on thin-film lithium niobate and interface it with deterministic solid-state single-photon sources based on quantum dots in nanophotonic waveguides. The generated photons are processed with low-loss circuits programmable at speeds of several gigahertz. We realize a variety of key photonic quantum information processing functionalities with the high-speed circuits, including on-chip quantum interference, photon demultiplexing, and reprogrammability of a four-mode universal photonic circuit. These results show a promising path forward for scalable photonic quantum technologies by merging integrated photonics with solid-state deterministic photon sources in a heterogeneous approach to scaling up.
Item Description:Veröffentlicht: 12. Mai 2023
Gesehen am 14.08.2023
Physical Description:Online Resource
ISSN:2375-2548
DOI:10.1126/sciadv.adg7268

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