Chirality induced phase separation in active circle swimmers

• Main Authors: Kushwaha, Divya, Mishra, Shradha
• Format: Journal Article
• Language: English
• Published: 22.10.2024
• Subjects: Physics - Soft Condensed Matter
• DOI: 10.48550/arxiv.2410.16984

Many microswimmers are inherently chiral, and this chirality can introduce fascinating behaviors in a collection of microswimmers. The dynamics become even more intriguing when two types of microswimmers with distinct chirality are mixed. Our study considers a mixture of self-propelled particles with opposite chirality, examining how the system characteristics evolve as the magnitude of chirality is tuned. In weakly chiral systems, the particles exhibit similar behavior, leading to a globally flocking phase where both types of particles are well mixed. However, in an intermediate range of chirality, the particles demix and follow their trajectories, creating a competition between chirality and self-propulsion. This competition results in interesting phases within the system. We explore the characteristics of these different phases in detail, focusing on the roles of self-propulsion speed and chirality.