QUANTDYN: Quantum dynamics and quantum transport

Project funded by Fundação para a Ciência e a Tecnologia, I.P. (FCT) (Concurso para Financiamento de Projetos de Investigação Científica e Desenvolvimento Tecnológico em Todos os Domínios Ci), grant PTDC/FIS-MAC/29291/2017. Funded amount: EUR 239,939, as stated by the source. Runs 2018-10-01 to 2022-09-30. Keywords: quantum decoherence, flat band systems, topologically protected quantum states, quantum computation, Exact sciences. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2026-07-23); national funding data, not CORDIS. Abstract given by the source: The protection of quantum states against decoherence is essential in the context of quantum computing and quantum engineering in general. Several approaches exist that aim to reduce the coupling between the quantum computing system and the environment and therefore increase the decoherence time. One of the most interesting, but difficult to implement experimentally, consists of generating a particularly symmetric coupling between the system and the environment so that there is a subspace of states which are decoherence-free. Another approach consists in storing the information topologically, that is, using topological invariants. In this project, we propose to study decoherence processes in: i) many-body electronic states in topologically non-trivial 1D interacting systems; ii) many-body spin or electronic states in frustrated Hamiltonians which allow real space separation between particles (due to the presence of a flat band in the magnon or electron energy dispersion). We aim to: i) study how these systems evolve in time isolated and in contact with the environment, taking into account particle interactions. ii) understand how the decoherence process can be followed using transport measurements. A complete study of the charge and spin responses in 1D interacting systems and in frustrated lattices will be carried out. The members of the project team have the necessary knowledge as well as the technical skills to accomplish these goals. In particular, the scientific work in the last five years of the PI (member of I3N/Aveiro) has addressed flat band systems and topological phases in low dimensional systems. The co-PI has an extensive record of work in low dimensional electronic systems. Besides these two senior researchers, this project team includes 3 young researchers and one PhD student full time committed to this project. Others members will be added during the three-year period of the project. A set of computational packages are presently under development by [shortened; the full text is on the OpenAIRE page]

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Fundação para a Ciência e a Tecnologia, I.P. (FCT). 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 QUANTDYN project, funded by FCT with EUR 239,939, ran from October 1, 2018, to September 30, 2022. It focused on quantum decoherence and related topics in quantum computing and engineering. Suggested technology pillar: computing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.