Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Adhikari, Ronojoy"'
Autor:
Németh, Balázs, Adhikari, Ronojoy
The stochastic dynamics of a rigid inclusion constrained to move on a curved surface has many applications in biological and soft matter physics, ranging from the diffusion of passive or active membrane proteins to the motion of phoretic particles on
Externí odkaz:
http://arxiv.org/abs/2405.07539
Autor:
Thorneywork, Alice L., Gladrow, Jannes, Keyser, Ulrich F., Cates, Michael E., Adhikari, Ronojoy, Kappler, Julian
Recent experiments have probed the relative likelihoods of trajectories in stochastic systems by observing survival probabilities within a tube of radius $R$ in spacetime. We measure such probabilities here for a colloidal particle in a corrugated ch
Externí odkaz:
http://arxiv.org/abs/2402.01559
Publikováno v:
Journal of Fluid Mechanics, Volume 998, A34 (2024)
We study the autophoretic motion of a spherical active particle interacting chemically and hydrodynamically with its fluctuating environment in the limit of rapid diffusion and slow viscous flow. Then, the chemical and hydrodynamic fields can be expr
Externí odkaz:
http://arxiv.org/abs/2310.01572
Autor:
Kikuchi, Lukas, Adhikari, Ronojoy
We present a geometric formulation of the mechanics of a field that takes values in a homogeneous space \mathbb{X} on which a Lie group G acts transitively. This generalises the mechanics of Cosserat media where \mathbb{X} is the frame bundle of Eucl
Externí odkaz:
http://arxiv.org/abs/2310.01388
Autor:
Németh, Balázs, Adhikari, Ronojoy
The Cosserat solid is a theoretical model of a continuum whose elementary constituents are notional rigid bodies. Here we present a formulation of the mechanics of a Cosserat solid in the language of modern differential geometry and exterior calculus
Externí odkaz:
http://arxiv.org/abs/2309.14268
Transition pathways of stochastic dynamical systems are typically approximated by instantons. Here we show, using a dynamical system containing two competing pathways, that at low-to-intermediate temperatures, instantons can fail to capture the most
Externí odkaz:
http://arxiv.org/abs/2203.12947
Autor:
Bolitho, Austen, Adhikari, Ronojoy
Micropolar active matter requires for its kinematic description both positional and orientational degrees of freedom. Activity generates dynamic coupling between these kinematic variables that are absent in micropolar passive matter, such as the orie
Externí odkaz:
http://arxiv.org/abs/2202.06102
Publikováno v:
Phys. Rev. E 106, 014601 (2022)
The mechanics and statistical mechanics of a suspension of active particles are determined by the traction (force per unit area) on their surfaces. Here we present an exact solution of the direct boundary integral equation for the traction on a spher
Externí odkaz:
http://arxiv.org/abs/2109.02581
Autor:
Peterson, Joseph D., Adhikari, Ronojoy
Publikováno v:
Phys. Rev. E 104, 024410 (2021)
Epidemic models are useful tools in the fight against infectious diseases, as they allow policy makers to test and compare various strategies to limit disease transmission while mitigating collateral damage on the economy. Epidemic models that are mo
Externí odkaz:
http://arxiv.org/abs/2010.10955
The sojourn probability of an It\^o diffusion process, i.e. its probability to remain in the tubular neighborhood of a smooth path, is a central quantity in the study of path probabilities. For $N$-dimensional It\^o processes with state-dependent ful
Externí odkaz:
http://arxiv.org/abs/2009.04250