Wen Yan

The force on a boundary in active matter

We present a general theory for determining the force (and torque) exerted on a boundary (or body) in active matter. The theory extends the description of passive Brownian colloids to self-propelled active particles and applies for all ratios of the thermal energy

Anisotropic swim stress in active matter with nematic order

k_BT

Swim pressure: stress generation in active matter.

to the swimmers activity

The swim force as a body force

k_sT_s = \zeta U_0^2\tau_R/6

The behavior of active diffusiophoretic suspensions: An accelerated Laplacian dynamics study

, where

Antiswarming: Structure and dynamics of repulsive chemically active particles

\zeta

The curved kinetic boundary layer of active matter

is the Stokes drag coefficient,

The Force on a Boundary in Active Matter

U_0

The Swim Pressure of Active Matter

is the swim speed and

Swim pressure of active matter

\tau_R