Abstract
We derive an exact solution of the Smoluchowski equation for a Brownian particle moving in an arbitrary potential well with a general delocalized sink. The average rate constant for the general sink is expressed explicitly in terms of the corresponding rate constants for localized sinks with different initial conditions and sink positions. Simple analytical expressions are provided for diffusion in a harmonic potential well
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More From: Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
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