Fluctuations of thermodynamic observables across the quantum-to-classical transition

Project funded by Swedish Research Council (Grant for positions or stipends), grant 2020-03362_VR. Participating organisations named by the source: Lund University. Funded amount: SEK 266,664, as stated by the source. Runs 2021-01-01 to 2021-04-30. 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: Fluctuations of thermodynamic observables carry valuable information, making them a promising diagnostic tool for, e.g., quantifying dissipation. Furthermore, measurement-feedback schemes allow to exploit fluctuations for practical purposes such as generating electricity. Nevertheless, there is still a lack of theoretical tools for describing fluctuations across the quantum-to-classical transition. Here we propose to remedy this situation by systematically investigating the influence of classical and quantum fluctuations on thermodynamic observables. Such an endeavor is crucial for understanding the thermodynamics of open quantum systems, which in turn is key for exploiting them for novel quantum technologies. A particular focus will lie on non-classical signatures and on exploiting fluctuations for power-production in measurement and feedback schemes.To this end, the project has three aims which will result in novel conceptual insights involving:The role of the particle-wave duality in quantum heat enginesThe influence of the collapse of the wave-function on information-to-work conversionA new concept for power-production exploiting fluctuating temperaturesas well as practical tools for experimentalists and theorists:Tests for certifying non-classical behavior for continuous measurementsNovel out-of-equilibrium relations across the quantum-to-classical transitionA parameter estimation theory for fluctuating parameterspaving the way for novel quantum technological devices.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Research Council. Retrieved 2026-10-28. 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 "Fluctuations of thermodynamic observables across the quantum-to-classical transition" is funded by the Swedish Research Council with a grant of SEK 266,664, running from January 1, 2021, to April 30, 2021, at Lund University. Suggested technology pillar: enabling. Generated by AI from the public source text; it may contain errors and the original source is authoritative.