Collective quantum phenomena in dissipative systems – towards time-crystal applications in sensing and metrology

Project funded by Swedish Research Council (Project grant), grant 2023-05664_VR. Participating organisations named by the source: Stockholm University. Funded amount: SEK 3,900,000, as stated by the source. Runs 2024-01-01 to 2026-12-31. 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 2025-12-06); national funding data, not CORDIS. Abstract given by the source: Quantum technology carries the promise to revolutionise data processing, communication, and metrology. The current approach towards unlocking this potential builds on scalable and fully coherent devices with high technological complexity.This project follows a novel route and seeks to identify and realise quantum resources by exploiting collective phenomena in open quantum systems. This approach does not rely on perfect coherence, instead exploits the competition between coherent interactions and dissipative processes, which yields a certain degree of robustness against external perturbations. A prominent example are dissipative time-crystals, which constitute a many-body phase that displays persistent temporal oscillations although their evolution is heavily influenced by incoherent processes.The goal of this project is to identify and characterise such many-body phases and to perform experiments that demonstrate their applicability for sensing and timekeeping. Our focus will be on spin-boson models which constitute simple, yet broadly relevant many-body quantum systems. Within our consortium we will implement such a system using crystals of trapped ions with in-situ cooling. This platform allows us to address important questions, ranging from formulation of open quantum many-body dynamics under periodic driving to the use of feedback for controlling dissipative dynamics.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Research Council. 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 "Collective quantum phenomena in dissipative systems" is funded by the Swedish Research Council with a grant of SEK 3,900,000, running from January 1, 2024, to December 31, 2026, at Stockholm University. It aims to explore quantum resources in open quantum systems. Suggested technology pillar: sensing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.