ArticleNature materials2025
Large-scale quantum dot-lithium niobate hybrid integrated photonic circuits enabling on-chip quantum networking.
Article in Nature materials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Fully tunable on-chip meta-generator for multidimensional Poincaré sphere mapping.Light, science & applications · 2026Article
- Nanowire Quantum Dot Emitters Evanescently Coupled On-Chip via Curved and Segmented SiN Waveguides.ACS photonics · 2026Article
- Site-controlled quantum dot arrays edge-coupled to integrated silicon nitride waveguides and devices.Nature communications · 2026Article
- Hybrid integration of quantum dot single-photon sources with lithium tantalate photonics for on-chip routing.Nature communications · 2026Article
- On-chip non-Hermitian cavity quantum electrodynamics.Nature nanotechnology · 2026Article
Corrections and comments
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Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Hybrid integrated quantum photonics offers a scalable route to chip-based quantum networks by combining solid-state quantum dots (QDs) with low-loss and reconfigurable photonic circuits. However, limited integration scalability, spectral inhomogeneity of QD emissions and the challenge of achieving quantum interference between independent sources have impeded progress towards this goal. Here we demonstrate a hybrid lithium niobate photonic platform integrating arrays of QD-containing waveguides with 20 deterministic single-photon sources. Leveraging the piezoelectric properties of thin-film lithium niobate, we develop a circuit-compatible local strain-tuning technique that enables on-chip spectral tuning of individual QDs by up to 7.7 meV. This capability allows quantum interference with a visibility of 0.73 between two spatially separated waveguide-coupled QD single-photon sources, thereby establishing a functional on-chip quantum network. The large-scale integration of tunable and interconnected QD-based single-photon sources within low-loss lithium niobate circuits paves the way for realizing compact and scalable quantum networks on a photonic chip.
Identifiers
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Registered trials
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