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Article Dans Une Revue Journal of Physics: Condensed Matter Année : 2018

Static structure of active Brownian hard disks

Résumé

We explore the changes in static structure of a two-dimensional system of active Brownian particles (ABP) with hard-disk interactions, using event-driven Brownian dynamics simulations. In particular, the effect of the selfpropulsion velocity and the rotational diffusivity on the orientationally-averaged fluid structure factor is discussed. Typically activity increases structural ordering and generates a structure factor peak at zero wave vector which is a precursor of motility-induced phase separation. Our results provide reference data to test future statistical theories for the fluid structure of active Brownian systems.
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Dates et versions

hal-04414905 , version 1 (24-01-2024)

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N de Macedo Biniossek, H Löwen, Th Voigtmann, F Smallenburg. Static structure of active Brownian hard disks. Journal of Physics: Condensed Matter, 2018, 30 (7), pp.074001. ⟨10.1088/1361-648X/aaa3bf⟩. ⟨hal-04414905⟩
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