Spontaneous Velocity Alignment in Motility-Induced Phase Separation

Physical Review Letters
L CapriniA Puglisi

Abstract

We study a system of purely repulsive spherical self-propelled particles in the minimal setup inducing motility-induced phase separation (MIPS). We show that, even if explicit alignment interactions are absent, a growing order in the velocities of the clustered particles accompanies MIPS. Particles arrange into aligned or vortexlike domains whose size increases as the persistence of the self-propulsion grows, an effect that is quantified studying the spatial correlation function of the velocities. We explain the velocity alignment by unveiling a hidden alignment interaction of the Vicsek-like form, induced by the interplay between steric interactions and self-propulsion.

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Citations

May 30, 2020·Soft Matter·Lorenzo CapriniAlessandro Sarracino
Aug 4, 2020·Soft Matter·Suchismita Das, Raghunath Chelakkot
Sep 14, 2020·The European Physical Journal. E, Soft Matter·Alexander R SprengerAbdallah Daddi-Moussa-Ider
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Oct 21, 2020·Physical Review. E·Suchismita DasRaghunath Chelakkot
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Dec 5, 2020·Physical Review Letters·Zhi-Feng HuangHartmut Löwen
Oct 31, 2020·Physical Review Letters·Xia-Qing ShiAlexandre Solon
Jan 16, 2021·The Journal of Chemical Physics·Lorenzo Caprini, Umberto Marini Bettolo Marconi
Nov 15, 2020·The Journal of Chemical Physics·Lorenzo Caprini, Umberto Marini Bettolo Marconi
Feb 23, 2021·Soft Matter·Francis JoseSunil P Singh
Mar 19, 2021·Soft Matter·Lorenzo Caprini, Umberto Marini Bettolo Marconi
Mar 20, 2021·Physical Review. E·Dino Osmanović
May 22, 2021·Soft Matter·Saientan Bag, Rituparno Mandal
May 20, 2021·Physical Review. E·Subhadip ChakrabortiPunyabrata Pradhan
Jun 16, 2021·Soft Matter·Nicholas LauersdorfDaphne Klotsa
Jun 18, 2021·Physical Review. E·Monika SanoriaAmitabha Nandi
Jul 10, 2021·The Journal of Chemical Physics·Lorenzo CapriniUmberto Marini Bettolo Marconi
Jun 22, 2021·Physical Review Letters·Nicola Andreas SökerFrank Cichos
Jul 18, 2021·Physical Review. E·Sven AuschraKlaus Kroy
Jul 17, 2021·The Journal of Chemical Physics·Nikita P Kryuchkov, Stanislav O Yurchenko
Jul 11, 2021·Scientific Reports·Andrea Plati, Andrea Puglisi
Sep 19, 2021·Proceedings of the National Academy of Sciences of the United States of America·Kristian ThijssenTyler N Shendruk
Sep 24, 2021·Proceedings of the National Academy of Sciences of the United States of America·Rituparno Mandal, Peter Sollich
Nov 10, 2021·Soft Matter·C Miguel Barriuso GutiérrezChantal Valeriani

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