Complex patterns: from physical to social interactions
2006 (English)Doctoral thesis, comprehensive summary (Other academic)
Interactions are what gives us the knowledge of the world around us. Interactions on all levels may fundamentally be seen as an exchange of information and a possible response of the same. Whether it is an electron in an electrical field or a handsome dude in a bar responding to a flirtation---interactions make things happen. In this sense we can see that objects without the capability of interacting with each other also are invisible to each other. Chains of pairwise interacting entities can serve as mediators of indirect interactions between objects. Nonetheless, in the limit of no interactions, we get into a philosophical debate whether we actually may consider anything to exist since it can not be detected in any way. Interactions between matter tend to be organized and show a hierarchical structure in which smaller sub-systems can be seen as parts of a bigger system, which in turn might be a smaller part of an even bigger system. This is reflected by the fact that we have sciences that successfully study specific interactions between objects or matter---physics, chemistry, biology, ecology, sociology,... What happens in a situation where all length scales are important? How does the structure of the underlying network of interactions affect the dynamical properties of a system? What network structures do we find and how are they created? This thesis is a physicist's view of collective dynamics, from superconductors to social systems and navigation in city street networks.
Place, publisher, year, edition, pages
Umeå: Fysik , 2006. , 60 p.
Complex networks, collective dynamics, statistical physics, random graphs
Other Physics Topics
IdentifiersURN: urn:nbn:se:umu:diva-801ISBN: 91-7264-090-1OAI: oai:DiVA.org:umu-801DiVA: diva2:144602
2006-06-02, N430, Naturvetarhuset, Umeå Universitet, Umeå, 13:15 (English)
Jeong, Hawoong, Professor
Minnhagen, Petter, Professor
List of papers