Controlling the quantum with cold atoms

Project funded by Swedish Research Council (Project grant), grant 2013-03981_VR. Participating organisations named by the source: Stockholm University. Funded amount: SEK 3,700,000, as stated by the source. Runs 2014-01-01 to 2017-12-31. 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: Modern experimental techniques make systems of cold atoms a perfect playground for systematic and controlled explorations of quantum many-body phenomena. I will carry out theoretical research in two such systems; ultracold atoms confined in either optical resonators or subjected to periodic optical lattices. The idea of using resonators is to enhance the atom-light interaction strength and thereby reach a regime were not only the atoms but also the light must be treated on a quantum level. Together with an experimental group in Zürich, I will look into: (i) configurations that give so called quantum frustration, and (ii) interplay between short and long range interactions between atoms that arises inside the cavity. In the second part I will focus on how the surrounding environment affects the quantum many-body state, and if such decoherence can be an asset in order to create highly non-classical states of matter. The work has both an analytical and numerical ingredient. Various numerical techniques will be considered: Gutzwiller, DMRG, and quantum Monte Carlo. Since I work close with experimentalists, special care must be paid on relevant system parameters. Both topics in the research plan are most timely were relatively little is known. Thus, deepen our understanding of these systems is of great importance not only on a fundamental level but it can also have practical implementations in the future, for example for high temperature superconductors and quantum computing.

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 "Controlling the quantum with cold atoms" was funded by the Swedish Research Council with a grant of SEK 3,700,000, running from January 1, 2014, to December 31, 2017, involving Stockholm University and focusing on quantum many-body phenomena. Suggested technology pillar: simulation. Generated by AI from the public source text; it may contain errors and the original source is authoritative.