Quantum many-body physics: from quantum simulators to thermalization

Project funded by Swedish Research Council (Project grant), grant 2018-04045_VR. Participating organisations named by the source: Stockholm University. Funded amount: SEK 3,056,000, as stated by the source. Runs 2019-01-01 to 2022-12-31. 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 2025-12-05); national funding data, not CORDIS. Abstract given by the source: Quantum many-body (QMB) theory grew out from nuclear and condensed matter physics over 70 years ago. In recent years the field has regained enormous popularity mainly due to experimental progress in the AMO community. Laser techniques make it possible to tailor desired QMB models - the first quantum simulators have seen the light of day. And for the first time is it possible to experimentally address questions like ”how does temperature emerge on a microscopic scale?”. With progress in quantum information, this exciting development has been termed the `quantum era´ by the European commission.We will analyze a set of problems in QMB theory. Employing orbital atomic states in optical lattices we will construct quantum spin liquid models, which are candidates for future topological quantum computing schemes. Light-matter systems will be consider for the realization of; new phases of matter, and non-equilibrium phase transitions. Such open quantum systems will also be studied on a more general level by exploring which universal properties that can be ascribed its non-unitary time-evolution. For example, can it be described by a random matrix theory? Apart from being fundamentally interesting, answering this question would be important for understanding phenomena like thermalization and non-Markovian dynamics. Our work combines analytical calculations with numerical QMB simulations. By discussing with experimental groups we hope that our results can be proven in the lab.

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 "Quantum many-body physics: from quantum simulators to thermalization" is funded by the Swedish Research Council with a grant of SEK 3,056,000, running from January 1, 2019, to December 31, 2022, involving Stockholm University. Suggested technology pillar: simulation. Generated by AI from the public source text; it may contain errors and the original source is authoritative.