State-dependent diffusion: Thermodynamic consistency and its path integral formulation
State-dependent diffusion: Thermodynamic consistency and its path integral formulation
The friction coefficient of a particle can depend on its position, as it does when the particle is near a wall. We formulate the dynamics of particles with such state-dependent friction coefficients in terms of a general Langevin equation with multiplicative noise, whose evaluation requires the introduction of specific rules. …