Complex systems: physics beyond physics

Holovatch Y, Kenna R, & Thurner S (2017). Complex systems: physics beyond physics. European Journal of Physics 38 (2): 023002. DOI:10.1088/1361-6404/aa5a87.

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Abstract

Complex systems are characterised by specific time-dependent interactions among their many constituents. As a consequence they often manifest rich, non-trivial and unexpected behaviour. Examples arise both in the physical and non-physical worlds. The study of complex systems forms a new interdisciplinary research area that cuts across physics, biology, ecology, economics, sociology, and the humanities. In this paper we review the essence of complex systems from a physicists' point of view, and try to clarify what makes them conceptually different from systems that are traditionally studied in physics. Our goal is to demonstrate how the dynamics of such systems may be conceptualised in quantitative and predictive terms by extending notions from statistical physics and how they can often be captured in a framework of co-evolving multiplex network structures. We mention three areas of complex-systems science that are currently studied extensively, the science of cities, dynamics of societies, and the representation of texts as evolutionary objects. We discuss why these areas form complex systems in the above sense. We argue that there exists plenty of new ground for physicists to explore and that methodical and conceptual progress is needed most.

Item Type: Article
Depositing User: Romeo Molina
Date Deposited: 20 Feb 2017 08:36
Last Modified: 22 Mar 2017 10:28
URI: http://pure.iiasa.ac.at/14386

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