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Issue 5, 2017
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Phase behavior of active Brownian disks, spheres, and dimers

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Abstract

In this paper we provide high precision estimates of the phase diagram of active Brownian particles. We extract coexisting densities from simulations of phase separated states in an elongated box (slab geometry) which minimizes finite-size effects and allows for precise determination of points on the binodal lines. Using this method, we study the influence of both shape and dimensionality on the two-phase region. Active spheres and dimers of active particles are compared to the known phase diagram of active Brownian disks. In the case of dimers, both correlated and uncorrelated propulsion of the two beads are studied. The influence of correlations is discussed through a simple mapping.

Graphical abstract: Phase behavior of active Brownian disks, spheres, and dimers

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Publication details

The article was received on 21 Nov 2016, accepted on 02 Jan 2017 and first published on 13 Jan 2017


Article type: Paper
DOI: 10.1039/C6SM02622B
Citation: Soft Matter, 2017,13, 1020-1026
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    Phase behavior of active Brownian disks, spheres, and dimers

    J. T. Siebert, J. Letz, T. Speck and P. Virnau, Soft Matter, 2017, 13, 1020
    DOI: 10.1039/C6SM02622B

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