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Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm00228k
Abstract: We numerically investigate how spatial variations of extensile or contractile active stress affect bulk active nematic systems in two and three dimensions. In the absence of defects, activity gradients drive flows which re-orient the nematic…
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Keywords:
dimensional active;
two three;
three dimensional;
activity ... See more keywords
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Published in 2020 at "Physical Review E"
DOI: 10.1103/physreve.101.022608
Abstract: The diffusion in two dimensions of noninteracting active particles that follow an arbitrary motility pattern is considered for analysis. A Fokker-Planck-like equation is generalized to take into account an arbitrary distribution of scattered angles of…
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Keywords:
motion;
two dimensional;
active motion;
dimensional active ... See more keywords
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Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.124.088001
Abstract: We describe the flows and morphological dynamics of topological defect lines and loops in three-dimensional active nematics and show, using theory and numerical modeling, that they are governed by the local profile of the orientational…
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Keywords:
dimensional active;
loops three;
defect loops;
defect loop ... See more keywords
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Published in 2019 at "Physical Review X"
DOI: 10.1103/physrevx.9.031051
Abstract: Active nematics contain topological defects which under sufficient activity move, create and annihilate in a chaotic quasi-steady state, called active turbulence. However, understanding active defects under confinement is an open challenge, especially in three-dimensions. Here,…
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Keywords:
topology three;
dimensional active;
topology;
three dimensional ... See more keywords