TY - JOUR
T1 - Field-theoretic model for chemotaxis in run and tumble particles
AU - Chatterjee, Purba
AU - Goldenfeld, Nigel
N1 - Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/3
Y1 - 2021/3
N2 - In this paper, we develop a field-theoretic description for run and tumble chemotaxis, based on a density-functional description of crystalline materials modified to capture orientational ordering. We show that this framework, with its in-built multiparticle interactions, soft-core repulsion, and elasticity, is ideal for describing continuum collective phases with particle resolution, but on diffusive timescales. We show that our model exhibits particle aggregation in an externally imposed constant attractant field, as is observed for phototactic or thermotactic agents. We also show that this model captures particle aggregation through self-chemotaxis, an important mechanism that aids quorum-dependent cellular interactions.
AB - In this paper, we develop a field-theoretic description for run and tumble chemotaxis, based on a density-functional description of crystalline materials modified to capture orientational ordering. We show that this framework, with its in-built multiparticle interactions, soft-core repulsion, and elasticity, is ideal for describing continuum collective phases with particle resolution, but on diffusive timescales. We show that our model exhibits particle aggregation in an externally imposed constant attractant field, as is observed for phototactic or thermotactic agents. We also show that this model captures particle aggregation through self-chemotaxis, an important mechanism that aids quorum-dependent cellular interactions.
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U2 - 10.1103/PhysRevE.103.032603
DO - 10.1103/PhysRevE.103.032603
M3 - Article
C2 - 33862765
AN - SCOPUS:85102936053
VL - 103
JO - Physical Review E
JF - Physical Review E
SN - 2470-0045
IS - 3
M1 - 032603
ER -