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2020 (Engelska) Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en] This doctoral thesis investigates three different topics: How friction evolves in atomically thin layered materials (2D materials); How social dynamics can be used to model grand scale common-pool resource games; Benchmarking of various image reconstruction algorithms in atomic force microscopy experiments. While these topics are diverse, they share being complex out-of-equilibrium systems. Furthermore, our approach to these topics will be the same: using simple models to obtain qualitative information about a system's dynamics. In the case of atomically thin layered materials, we will be expanding on the influential Prandtl-Tomlinson model and obtain an improved model constituting a substantial improvement in the theoretical description of friction in these systems. In the context of social dynamics, we will introduce a novel model representing a new approach to consensus rates on social networks in relation to society spanning coordination problems. For the image reconstruction project, our ambition is to investigate a new method for recreating free-energy surfaces based on AFM experiment, however, for this project only preliminary results are included.
Ort, förlag, år, upplaga, sidor
Stockholm: Department of Physics, Stockholm University, 2020. s. 138
Nyckelord tribology, nanofriction, 2d materials, graphene, image reconstruction, social dynamics, common-pool resource, collective action, simple models
Nationell ämneskategori
Fysik Materialteknik Sociologi (Exklusive socialt arbete, socialantropologi, demografi och kriminologi)
Forskningsämne
teoretisk fysik
Identifikatorer urn:nbn:se:su:diva-186930 (URN) 978-91-7911-378-0 (ISBN)978-91-7911-379-7 (ISBN)
Disputation
2021-01-15, sal FB42, AlbaNova universitetscentrum, Roslagstullsbacken 21 and online via Zoom, public link is available at the department website, Stockholm, 14:00 (Engelska)
Opponent
Handledare
2020-12-212020-11-302025-02-17 Bibliografiskt granskad