Green-Kubo approach to the average swim speed in active Brownian systems
- Sharma, Abhinav Department of Physics, University of Fribourg, Switzerland
- Brader, Joseph M. Department of Physics, University of Fribourg, Switzerland
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24.10.2016
Published in:
- The Journal of Chemical Physics. - 2016, vol. 145, no. 16, p. 161101
English
We develop an exact Green-Kubo formula relating nonequilibrium averages in systems of interacting active Brownian particles to equilibrium time-correlation functions. The method is applied to calculate the density-dependent average swim speed, which is a key quantity entering coarse grained theories of active matter. The average swim speed is determined by integrating the equilibrium autocorrelation function of the interaction force acting on a tagged particle. Analytical results are validated using Brownian dynamics simulations.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 278696
- DOI 10.1063/1.4966153
- Persistent URL
- https://folia.unifr.ch/unifr/documents/305257
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