Nanocrystal Solids for Quantum Technology

Project funded by Swedish Research Council (Grant for positions or stipends), grant 2024-04967_VR. Participating organisations named by the source: Lund University. Funded amount: SEK 4,400,000, as stated by the source. Runs 2025-01-01 to 2028-12-31. Keywords: Oklassificerat, Unclassified. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-12-04); national funding data, not CORDIS. Abstract given by the source: The interest in optical quantum computers drives a need for microscopic coherent light sources. Solution-processed assemblies of luminescent colloidal nanocrystals are promising candidates for such light sources because they can achieve cooperative light amplification. However, utilizing such materials is difficult because of two challenges: the unpredictable cooperativity between the nanocrystals and reliance on cadmium- and lead-based compositions, which restrict technological integration and commercialization. This project combines materials chemistry and tools of quantum optics to tackle these challenges. It starts with a concept of light-coupled nanocrystal solids where light-matter interactions are engineered through structure and composition, and materials are produced by self-assembling nanocrystals into colloidal crystals. By utilizing colloidal luminescent nanocrystals of heavy metal-free phosphides, chalcogenides, and lead-free metal halides, the greener compositions of nanocrystal solids are achieved. Next, measurements of temporal emission coherence and photon statistics on nanocrystal solids are used to dissect the roots and properties of cooperative emission. Finally, the utility of light produced by such solids is benchmarked through statistical measurements in an optical quantum device. As a result, the application of nanocrystals for quantum technologies will be expanded, and the developed materials may yield new uses in materials science.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Research Council. Retrieved 2026-10-28. Licence: Creative Commons Attribution 4.0 (OpenAIRE Graph). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: Creative Commons Attribution 4.0 (CC BY 4.0).

AI-assisted summary: The project 'Nanocrystal Solids for Quantum Technology', funded by the Swedish Research Council, aims to develop microscopic coherent light sources using nanocrystals, addressing challenges in cooperativity and material composition. It runs from 2025 to 2028 with a budget of SEK 4,400,000. Suggested technology pillar: enabling. Generated by AI from the public source text; it may contain errors and the original source is authoritative.