QuLEMON - Quantum Light Enabled by Metal Oxide Nanocrystals

Project funded by Swedish Research Council (Grant for positions or stipends), grant 2019-04821_VR. Participating organisations named by the source: KTH, Royal Institute of Technology. Funded amount: SEK 3,666,660, as stated by the source. Runs 2020-01-01 to 2023-08-31. Keywords: Naturvetenskap, Natural Sciences, Fysik, Physical Sciences, Atom- och molekylfysik och optik, Atom and Molecular Physics and Optics. 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: Quantum devices operating at the single photon level constitute a fundamental building block for emerging technologies with profound impact on society, markets and everyday life. The project QuLEMON aims at the development of a scalable solid-state platform capable of generating and manipulating light at the quantum limit, relying on the unique properties of cuprous oxide (Cu2O). Intriguing condensed-matter phenomena have been demonstrated in this material, in particular giant Rydberg excitons showing signatures of quantum coherences and cold exciton gases exhibiting quantum-degenerate statistics. Here, we will develop new schemes for the generation and manipulation of single photons, studying excitons in Cu2O nanocrystals and their interactions down to the Rydberg blockade regime in confined nanoscale structures. The scalable integration of Cu2O with silicon photonic circuits will be elaborated, which will allow for versatile, miniaturized photonic devices that offer tunability by applying electric and strain fields. Moreover, hybrid architectures based hybrid Cu2O-2D material structures will be realized, opening up new opportunities for coupling ‘dark’ excitonic states in Cu2O to ‘bright’ excitonic transitions in 2D materials. The proposed research has broad implications for scalable quantum information processing, integrated nonlinear optics and Rydberg exciton physics.

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: QuLEMON is a project funded by the Swedish Research Council with a grant of SEK 3,666,660, running from January 1, 2020, to August 31, 2023. It focuses on developing a scalable solid-state platform for quantum light generation using cuprous oxide. Suggested technology pillar: sensing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.