Rydberg Exciton Solid-State Quantum Computer (RES-Q)

Project funded by Swedish Governmental Agency for Innovation Systems (Vinnova) (Project grant), grant 2024-00466_Vinnova. Participating organisations named by the source: KTH, Royal Institute of Technology. Funded amount: SEK 1,994,400, as stated by the source. Runs 2024-07-01 to 2025-03-01. Keywords: Oklassificerat, Unclassified. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-12-05); national funding data, not CORDIS. Abstract given by the source: Purpose and goal: In the RES-Q project, KTH Royal Institute of Technology and Chalmers University of Technology are pioneering a novel solid-state platform aimed at realizing quantum computing and quantum simulation for practical combinatorial optimization applications. Cuprous oxide (Cu2O), a semiconductor capable of hosting Rydberg excitons with large binding energy, serves as a solid-state analogue to highly excited atomic states. The core of RES-Q is to realize a solid-state based platform for large scale and nanosecond operation speed quantum computing tasks. Expected results and effects: During Stage 1, our primary focus lies on the development of arbitrary two-dimensional geometry exciton arrays. Our proposed approach relies on the generation of reconfigurable light patterns based on spatial light modulation, either in amplitude or in phase. By tightly focusing the beam onto the Cu2O crystal, the inter-site spacing can be reduced to a few micrometers, thus the large dipoles will lead to strong mutual interactions. Our proposed platform will be reconfigurable and capable of simulating a wide variety of systems with different interparticle interactions. Approach and implementation: Month 1-2: (WP1) SLM pattern design, A novel machine learning based algorithm will be developed to generate the phase patterns on SLM. Month 2-6: (WP2&3) KTH will focus on experimental generation of Rydberg exciton array and PL measurement of Rydberg series. Month 2-6: (WP4) CTH will map the geometry to a specific graph structure, which can be used to solve a Maximum Independent Set (MIS) problem. Month 7-8: (WP5&6) Drafting a comprehensive report, along with results and analysis. Continuous project management to ensure goal alignment, resource allocation, and timeline adherence.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Governmental Agency for Innovation Systems (Vinnova). Retrieved 2026-10-22. 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 Rydberg Exciton Solid-State Quantum Computer (RES-Q) project, funded by Vinnova with SEK 1,994,400, involves KTH and Chalmers University of Technology. It aims to develop a solid-state platform for quantum computing from July 2024 to March 2025. Suggested technology pillar: computing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.