AI 中文总结
研究手性活性系统中体相和微相分离，利用粒子和连续介质模型及多尺度分析粗粒化技术，揭示手性作用，引入活性场理论表明其在体相分离时对粗化定律等的影响，还证明手性可致液滴破裂。
AI 中文摘要
许多活性粒子由于群体感应相互作用而发生相分离，其自推进机制常常破坏手性对称性。利用粒子和连续介质模型，我们揭示了手性在诱导体相或微相分离中的作用，包括由气泡形成的手性相。这些相出现的解析预测需要基于多尺度分析的粗粒化技术。此外，引入一个最小活性场理论，我们表明，在体相分离区域，手性不会改变扩散的\(t^{1/3}\)粗化定律，也不会改变与毛细波相关的动力学指数，但会在界面处诱导行波。最后，我们证明，即使在没有流体流动的情况下，手性也会导致细长液滴的破裂，类似于之前实验中观察到的现象。
英文摘要
Many active particles phase-separate due to quorum-sensing interactions, and their self-propulsion mechanisms often break chiral symmetry. Using particle and continuum models, we uncover the role of chirality in inducing bulk or microphase separation, including a chiral phase formed of vapor bubbles. Analytical predictions for the emergence of these phases require a coarse-graining technique based on multiple-scale analysis. Further, introducing a minimal active field theory, we show that, in the bulk phase separation regime, chirality does not alter the diffusive $t^{1/3}$ coarsening law nor the dynamical exponent associated with capillary waves, but induces traveling waves at the interface. We finally demonstrate that, even in the absence of fluid flows, chirality can cause the breakup of elongated droplets, resembling phenomena previously observed experimentally.
Comments9 pages, 5 figures
