Structural correlations in diffusiophoretic colloidal mixtures with nonreciprocal interactions
Abstract
Nonreciprocal effective interaction forces can occur between mesoscopic particles in colloidal suspensions that are driven out of equilibrium. These forces violate Newton's third law actio = reactio on coarse-grained length and time scales. Here we explore the statistical mechanics of Brownian particles with nonreciprocal effective interactions. Our model system is a binary fluid mixture of spherically symmetric, diffusiophoretic mesoscopic particles, and we focus on the time-averaged particle pair- and triplet-correlation functions. Based on the many-body Smoluchowski equation we develop a microscopic statistical theory for the particle correlations and test it by computer simulations. For model systems in two and three spatial dimensions, we show that nonreciprocity induces distinct nonequilibrium pair correlations. Our predictions can be tested in experiments with chemotactic colloidal suspensions.
Additional Information
© 2016 IOP Publishing Ltd. Received 5 October 2015, revised 4 November 2015. Accepted for publication 16 November 2015. Published 11 December 2015. This work was supported by the ERC Advanced Grant INTERCOCOS (Grant No 267499) and from the Russian Scientific Foundation, Project No 14-43-00053. M H acknowledges support by a fellowship within the Postdoc-Program of the German Academic Exchange Service (DAAD). The authors thank Matthias Kohl for helpful discussions.Attached Files
Submitted - 1510.01870v2.pdf
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Additional details
- Eprint ID
- 64414
- DOI
- 10.1088/0953-8984/28/2/025102
- Resolver ID
- CaltechAUTHORS:20160211-093129541
- 267499
- European Research Council (ERC)
- 14-43-00053
- Russian Scientific Foundation
- Deutscher Akademischer Austauschdienst (DAAD)
- Created
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2016-02-19Created from EPrint's datestamp field
- Updated
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2022-07-12Created from EPrint's last_modified field