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Chemical Physics of Active Matter
Active matter composed of self-propelled particles has become an increasingly topical research arena in the field of non-equilibrium phenomena. Fascinating new physics such as spontaneous collective motion and motility induced phase separation have been reported and studied extensively. This special topic highlights the forefront of research in this interdisciplinary area between chemistry and physics.
Guest Editors: Hartmut Löwen and Olivier Dauchot

Surfaces, Interfaces, and Materials
Optimal motion of triangular magnetocapillary swimmers
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Alexander Sukhov; Sebastian Ziegler; Qingguang Xie; Oleg Trosman; Jayant Pande; Galien Grosjean; Maxime Hubert; Nicolas Vandewalle; Ana-Sunčana Smith; Jens Harting
Surfaces, Interfaces, and Materials
Flow fields around pinned self-thermophoretic microswimmers under confinement
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A. P. Bregulla; F. Cichos
Theoretical Methods and Algorithms
Trail-mediated self-interaction
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W. Till Kranz; Ramin Golestanian
Polymers and Soft Matter
Chemotaxis in a binary mixture of active and passive particles
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Julian Stürmer; Maximilian Seyrich; Holger Stark
Polymers and Soft Matter
Active Janus colloids at chemically structured surfaces
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W. E. Uspal; M. N. Popescu; S. Dietrich; M. Tasinkevych
PERSPECTIVES
Ludovic Berthier; Elijah Flenner; Grzegorz Szamel
Polymers and Soft Matter
Self-propulsion of an active polar drop
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Natsuhiko Yoshinaga
Polymers and Soft Matter
Hydrodynamic interactions dominate the structure of active swimmers’ pair distribution functions
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Fabian Jan Schwarzendahl; Marco G. Mazza
Polymers and Soft Matter
Fluctuation-dissipation in active matter
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Eric W. Burkholder; John F. Brady
Polymers and Soft Matter
Self-propelled particle in a nonconvex external potential: Persistent limit in one dimension
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Yaouen Fily
Polymers and Soft Matter
Pressure, surface tension, and curvature in active systems: A touch of equilibrium
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René Wittmann; Frank Smallenburg; Joseph M. Brader
Theoretical Methods and Algorithms
A computational model for bacterial run-and-tumble motion
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Miru Lee; Kai Szuttor; Christian Holm
Liquids, Glasses, and Crystals
Interparticle torques suppress motility-induced phase separation for rodlike particles
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Robin van Damme; Jeroen Rodenburg; René van Roij; Marjolein Dijkstra
Polymers and Soft Matter
Leap-frog transport of magnetically driven anisotropic colloidal rotors
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Helena Massana-Cid; Eloy Navarro-Argemí; Demian Levis; Ignacio Pagonabarraga; Pietro Tierno
Theoretical Methods and Algorithms
Topological and geometrical quantities in active cellular structures
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D. Wenzel; S. Praetorius; A. Voigt
Theoretical Methods and Algorithms
Giant number fluctuations in dry active polar fluids: A shocking analogy with lightning rods
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John Toner
Polymers and Soft Matter
Tanwi Debnath; Pulak K. Ghosh; Yunyun Li; Fabio Marchesoni; Franco Nori
Liquids, Glasses, and Crystals
Rakesh Chatterjee; Nimrod Segall; Carl Merrigan; Kabir Ramola; Bulbul Chakraborty; Yair Shokef
Polymers and Soft Matter
Phase separation and emergence of collective motion in a one-dimensional system of active particles
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Lucas Barberis; Fernando Peruani
Theoretical Methods and Algorithms
A lattice Boltzmann model for squirmers
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Michael Kuron; Philipp Stärk; Christian Burkard; Joost de Graaf; Christian Holm