Active Motion And Swarming


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Active Motion and Swarming


Active Motion and Swarming

Author: Pawel Romanczuk

language: en

Publisher: Logos Verlag Berlin GmbH

Release Date: 2011


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Recently, there has been an increasing focus on various biological and physical systems known as "active matter". Examples of such systems range from individual units, such as motile cells or artificial self-propelled particles, to large systems of interacting active particles or individuals. The emergence of large-scale collective motion, as exhibited by flocks of birds or bacterial colonies, is just one prominent and fascinating example of self-organization in active matter systems. In this work, we discuss different individual-based models of active matter using the concept of active Brownian motion. The first part of this work explores the dynamical behavior of single active particles with a particular emphasis on the impact of so-called active fluctuations. The second part extends the scope of this study to interacting active Brownian particles and their collective behavior. First, a systematic derivation of kinetic equations for active Brownian particles with velocity alignment is presented. Further on, motivated by recent biological observations, a new type of "escape-pursuit" model of collective motion is introduced and successfully employed in modeling collective locust behavior.

Brownian Agents and Active Particles


Brownian Agents and Active Particles

Author: Frank Schweitzer

language: en

Publisher: Springer Science & Business Media

Release Date: 2007-08-31


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This book lays out a vision for a coherent framework for understanding complex systems. By developing the genuine idea of Brownian agents, the author combines concepts from informatics, such as multiagent systems, with approaches of statistical many-particle physics. It demonstrates that Brownian agent models can be successfully applied in many different contexts, ranging from physicochemical pattern formation to swarming in biological systems.

Integrative Systems Approaches to Natural and Social Dynamics


Integrative Systems Approaches to Natural and Social Dynamics

Author: M. Matthies

language: en

Publisher: Springer Science & Business Media

Release Date: 2012-12-06


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At the start of the new millennium, mankind is challenged by a paradox: the greater the apparent knowledge becomes, the greater the uncertainty in understanding and predicting how the world works appears. This book presents the outline of a new basis of Systems Science and a methodology for its applications in complex environmental, economic, social, and technological systems.