Unconventional states of matter in multi-component quantum systems from strong, long-range or frustrated intercomponent interactions

Project funded by Swedish Research Council (Project grant), grant 2018-03659_VR. Participating organisations named by the source: KTH, Royal Institute of Technology. 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, Den kondenserade materiens fysik, Condensed Matter Physics. 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: Research on superconductors and superfluids led to understating of a number of physical principles that became cornerstone concepts across many branches of physics. Recent developments in the field produced many new open questions. That includes such a basic question as how complete is the classification of superconducting states? The Ginzburg and Landau classified macroscopic responses of superconductors using the single parameter: the ratio of the magnetic field penetration length and coherence lengths coming from the breakdown of U(1) symmetry. Today many known superconductors break multiple symmetries: does the type-1/type-2 dichotomy still hold? State-defining properties of a superconducting state is zero resistivity and exponential screening of magnetic field (the London’s theory states that the magnetic field is described by a massive vector field), can there be superconducting states where it is not the case? It was hypothesised that near some critical points in superconductors magnetic field is described by a Skyrme-like model instead with a number of crucial consequences. Finally, all currently known “super” states of matter fall into one out of four aggregate states: superconductors, superfluid liquids, superfluid gases and theoretically discussed supersolids. Can there be other “aggregate” super-states of matter? The project will investigate these basic questions and their ramifications for other condensed matter systems.

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, funded by the Swedish Research Council with a grant of SEK 3,056,000, focuses on unconventional states of matter in multi-component quantum systems and runs from January 1, 2019, to December 31, 2022. Participating organization includes KTH, Royal Institute of Technology. Suggested technology pillar: simulation. Generated by AI from the public source text; it may contain errors and the original source is authoritative.