Quantum state transduction in a hybrid spin-opto-mechanical system

Project funded by Carlsberg Foundation (Internationalisation Fellowships), grant CF20-0475. Participating organisations named by the source: THE UNIVERSITY OF CHICAGO. Runs n/a to 2022-12-30. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2026-07-23); national funding data, not CORDIS. Abstract given by the source: What? Modern communication and information technologies rely heavily on the use of transducers - devices which enable conversion of signals between different physical modalities (e.g. conversion between electrical and optical signals). However, with the rapid progress in quantum computing, communication and sensing, where the laws of quantum physics can be exploited to tackle problems beyond the reach of existing technologies, a markedly different type of transducers needs to be developed, capable of handling fragile quantum signals. This project seeks to develop such a quantum transducer, and study the interactions between optical, mechanical and electronic (i.e., electron spin) modalities in a regime where single quanta of information are shuttled between them. Why? To fully harness the potential of quantum computing, an interconnected network of quantum devices is necessary. Today's leading contenders for quantum computers are based on superconducting electronic circuits, and connecting them over large distances will require efficient conversion between microwave and optical signals, since light can travel over vast distances with little attenuation. A number of proposed interconnect architectures rely on the use of phonons (quanta of vibrations) as information carriers at the nodes of the network, due to their ability to interact with a wide range of quantum systems. Therefore, understanding how phonons interact with electronic and optical degrees of freedom in a quantum device, and engineering these interactions is of significant importance. How? The transducer at the heart of this project will be based on silicon carbide (SiC), a widely used semiconductor material in the high-power electronics industry. In addition to having excellent optical and mechanical properties, SiC also hosts a family of defects in its crystal structure, which act as artificial atoms. Importantly, the electron spin of a single defect can be used as a quantum bit (qubit), the state of [shortened; the full text is on the OpenAIRE page]

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Carlsberg Foundation. Retrieved 2026-11-02. 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 "Quantum state transduction in a hybrid spin-opto-mechanical system" is funded by the Carlsberg Foundation and involves the University of Chicago. It aims to develop a quantum transducer for handling fragile quantum signals. Suggested technology pillar: enabling. Generated by AI from the public source text; it may contain errors and the original source is authoritative.