Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Shee, Amir"'
We explore the dynamics of active elements performing persistent random motion with fluctuating active speed and in the presence of translational noise in a $d$-dimensional harmonic trap, modeling active speed generation through an Ornstein-Uhlenbeck
Externí odkaz:
http://arxiv.org/abs/2410.22004
Autor:
Tang, Weizhen, Zheng, Yating, Shee, Amir, Lin, Guozheng, Han, Zhangang, Romanczuk, Pawel, Huepe, Cristián
We study the emerging collective states in a simple mechanical model of a dense group of self-propelled polar disks confined within a circular arena. Each disk has its center of rotation located at a distance R behind its centroid, so its central lin
Externí odkaz:
http://arxiv.org/abs/2410.13705
Autor:
Shee, Amir
We present an exact analytical study of an Active Brownian Particle (ABP) subject to both position and orientation stochastic resetting in a two-dimensional harmonic trap. Utilizing a Fokker-Planck-based renewal approach, we derive the system's exact
Externí odkaz:
http://arxiv.org/abs/2409.06920
Cargo distribution within eukaryotic cells relies on the active transport mechanisms driven by molecular motors. Despite their critical role, the intricate relationship between motor transport properties and cargo binding - and its impact on motor di
Externí odkaz:
http://arxiv.org/abs/2409.02655
We present the linear response theory for an elastic solid composed of active Brownian particles with intrinsic individual chirality, deriving both a normal mode formulation and a continuum elastic formulation. Using this theory, we compute analytica
Externí odkaz:
http://arxiv.org/abs/2407.05113
Publikováno v:
New J. Phys. 26, 083024 (2024)
In this work, we investigate the effects of chirality, accounting for translational diffusion, on active Brownian particles in two and three dimensions. Despite the inherent complexity in solving the Fokker-Planck equation, we demonstrate a Laplace t
Externí odkaz:
http://arxiv.org/abs/2404.09650
Autor:
Baconnier, Paul, Dauchot, Olivier, Démery, Vincent, Düring, Gustavo, Henkes, Silke, Huepe, Cristián, Shee, Amir
Self-alignment describes the property of a polar active unit to align or anti-align its orientation towards its velocity. In contrast to mutual alignment, where the headings of multiple active units tend to directly align to each other -- as in the c
Externí odkaz:
http://arxiv.org/abs/2403.10151
We report and characterize the emergence of a noise-induced state of quenched disorder in a generic model describing a dense sheet of active polar disks with non-isotropic rotational and translational dynamics. In this state, randomly oriented self-p
Externí odkaz:
http://arxiv.org/abs/2304.03630
Autor:
Shee, Amir, Chaudhuri, Debasish
Publikováno v:
Phys. Rev. E 105, 054148 (2022)
We consider the influence of active speed fluctuations on the dynamics of a $d$-dimensional active Brownian particle performing a persistent stochastic motion. We use the Laplace transform of the Fokker-Planck equation to obtain exact expressions for
Externí odkaz:
http://arxiv.org/abs/2112.13415
Autor:
Shee, Amir, Chaudhuri, Debasish
Publikováno v:
J. Stat. Mech. (2022) 013201
We consider the motion of an active Brownian particle with speed fluctuations in d-dimensions in the presence of both translational and orientational diffusion. We use an Ornstein-Uhlenbeck process for active speed generation. Using a Laplace transfo
Externí odkaz:
http://arxiv.org/abs/2108.12228