Emergence in Hybrid Quantum-Classical Many-body Systems: From Order Parameter Dynamics to Active Matter

Project funded by Fundação para a Ciência e a Tecnologia, I.P. (FCT), grant 2025.03249.BD. Runs 2026-05-01 to 2030-04-30. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2026-06-24); national funding data, not CORDIS. Abstract given by the source: The interplay between classical and quantum degrees of freedom is central to understanding complex phenomena across condensed matter physics, quantum chemistry, quantum optics, and quantum control theory. Classical variables—such as atomic positions, collective order parameters, or even spacetime geometry—can significantly influence quantum subsystems, giving rise to rich behaviors and novel phases that defy purely classical intuition. This thesis aims to investigate these phenomena through controlled theoretical models, establishing general frameworks for hybrid quantum-classical dynamics. Specifically, it will analyze classical order parameter dynamics coupled to quantum systems, explore models with scale-separated quantum and classical components, and introduce active classical “agent” particles capable of measuring and responding to quantum states. The insights gained will clarify how classical descriptions emerge from quantum mechanics, identify conditions under which they fail, and enable the prediction and control of novel quantum-classical phases in advanced materials and quantum devices.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Fundação para a Ciência e a Tecnologia, I.P. (FCT). 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 project "Emergence in Hybrid Quantum-Classical Many-body Systems" is funded by FCT and runs from May 1, 2026, to April 30, 2030. It aims to investigate the interplay between classical and quantum systems in various physical phenomena. Suggested technology pillar: simulation. Generated by AI from the public source text; it may contain errors and the original source is authoritative.