Controlling vibration-induced decoherence in quantum emitters - QuDec

Project funded by Novo Nordisk Foundation (Investigators), grant NNF23OC0082957. Participating organisations named by the source: DTU Technical University of Denmark. Runs n/a to 2030-10-31. Keywords: Methods, Nanotechnology, Photonics, Physics, Quantum Technologies. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-08-01); national funding data, not CORDIS. Abstract given by the source: Decoherence is a fascinating phenomenon leading a system holding quantum information, a qubit, to turn into a classical system. However, decoherence is a major challenge for quantum computers since they rely on quantum mechanics to perform powerful calculations going beyond the capabilities of classical computers. In QuDec, we will investigate in detail decoherence in quantum emitters (QE), systems able to send single quanta of light. QEs are building blocks for technologies using light as qubits. However, QEs are strongly influenced by the vibrations of the atomic lattice surrounding it which destroys the quantum properties of the light emitted. We will measure the effects of vibrations on QEs with a new experimental method allowing us to control the quantum properties of individual vibrations for the first time. We will investigate how quantum vibrations can be used to slow down decoherence in QEs, thereby potentially giving more time to perform quantum computation tasks._x000D_

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Novo Nordisk 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 QuDec project, funded by the Novo Nordisk Foundation, investigates decoherence in quantum emitters, which affects quantum information systems. It involves DTU Technical University of Denmark and aims to control the impact of vibrations on quantum properties. Suggested technology pillar: computing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.