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- W3131272555 abstract "The active Brownian particle (ABP) model describes a swimmer, synthetic or living, whose direction of swimming is a Brownian motion. The swimming is due to a propulsion force, and the fluctuations are typically thermal in origin. We present a 2D model where the fluctuations arise from nonthermal noise in a propelling force acting at a single point, such as that due to a flagellum. We take the overdamped limit and find several modifications to the traditional ABP model. Since the fluctuating force causes a fluctuating torque, the diffusion tensor describing the process has a coupling between translational and rotational degrees of freedom. An anisotropic particle also exhibits a noise-induced induced drift. We show that these effects have measurable consequences for the long-time diffusivity of active particles, in particular adding a contribution that is independent of where the force acts." @default.
- W3131272555 created "2021-03-01" @default.
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- W3131272555 date "2021-02-23" @default.
- W3131272555 modified "2023-09-27" @default.
- W3131272555 title "Shake your hips: An anisotropic active Brownian particle with a fluctuating propulsion force" @default.
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