论文标题
在运行和翻滚颗粒中趋化性的现场理论模型
A Field-Theoretic Model for Chemotaxis in Run and Tumble Particles
论文作者
论文摘要
在本文中，我们基于修改以捕获定向排序的晶体材料的密度功能描述，为运行和滚动趋化性开发了现场理论描述。我们表明，该框架具有内置的多粒子相互作用，软核排斥和弹性是描述具有粒子分辨率的连续集体阶段的理想选择，但在扩散的时间标准上。我们表明，我们的模型在外部施加的恒定吸引力场中表现出颗粒聚集，如光疗法或热效应剂所观察到的那样。我们还表明，该模型通过自化学捕获粒子聚集，这是一种有助于依赖群体相互作用的重要机制。
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 multi-particle 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.
