The Role of Motility and Alignment Interactions in the Formation of Reticulate Patterns in Filamentous Cyanobacteria Colonies
The formation of reticulate patterns in filamentous cyanobacteria colonies is driven by a balance between the filaments' gliding motility, characterized by their curvature fluctuations, and their non-reciprocal aligning interactions.
Phase Coexistence in a Two-Species Model of Nonreciprocal Quorum-Sensing Active Particles: A Comprehensive Investigation
This study investigates the phase behavior of a two-species model of nonreciprocal quorum-sensing (NRQS) active particles, revealing the emergence of complex, multi-scale patterns driven by the interplay of motility and nonreciprocal interactions.
A Generic Theory for Interacting, Spinning, Active Polar Particles: A Model for Cell Aggregates with Applications to Rotating Cell Doublets
This paper presents a novel theoretical framework, grounded in non-equilibrium thermodynamics, to model the dynamics of dense cell aggregates by representing cells as interacting active particles with polarity and spin, and applies this framework to analyze the spontaneous rotation of cell doublets.
Collective Behavior of Active, Deformable Vesicles ("Flexicles") with Internal Active Particles
The collective behavior of flexible, active vesicles filled with self-propelled particles (termed "flexicles") is governed by an interplay between internal particle dynamics, membrane deformability, and external density, leading to emergent phenomena like motility-induced phase separation and collective flow.
Giant Density Fluctuations Coexist with Hyperuniformity in Active Nematic Systems with Contact-Triggered Motility
Active nematic systems with motility triggered by particle contact exhibit a unique state of matter where giant density fluctuations, characteristic of ordered active systems, coexist with hyperuniformity, typically observed near absorbing phase transitions.
Transport Properties and Steady-State Correlations of a Harmonic Chain Driven by Active Run-and-Tumble Particle Reservoirs
This research paper investigates the impact of active reservoirs, modeled as chains of run-and-tumble particles, on the transport properties and stationary state of a harmonic chain, revealing the emergence of characteristic length scales, anomalous correlation decay, and non-trivial current reversals.
Selective Excitation of Work-Generating Cycles in Nonreciprocal Living Solids: A Study on Starfish Embryo Assemblies
Living chiral crystals (LCCs) formed by starfish embryos exhibit bistable states, fluctuating and oscillatory, driven by distinct chiral symmetry-breaking mechanisms at the microscopic level (spinning and precession), and these oscillations can be selectively excited mechanically, offering a novel way to generate work.
Chirality-Induced Phase Separation in Binary Mixtures of Active Circle Swimmers: A Simulation Study
In binary mixtures of self-propelled particles with opposite chirality, tuning the magnitude of chirality and self-propulsion speed leads to a diverse range of collective behaviors, including mixed flocking, phase separation into rotating clusters, and homogeneous rotation.
二維系統中波動主動應力下的長程有序性
在二維系統中，成對的隨機主動應力（不同於通常在活性物質系統中考慮的粒子級獨立波動力）能夠穩定長程平移有序性，並產生具有超均勻性的結構。
Noise-Induced Transitions Between Contractile and Extensile Active Stress in Isotropic Fluids: The Role of Nonlinearities and Density-Dependent Force Fluctuations
In isotropic active fluids, a transition from contractile to extensile active stress induced by fluctuations requires nonlinearities, specifically advection and a coupling between fluctuating forces and fluid density.
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