Diffusion through permeable interfaces: Fundamental equations and their application to first-passage and local time statistics
The diffusion equation is the primary tool to study the movement dynamics of a free Brownian particle, but when spatial heterogeneities in the form of permeable interfaces are present, no fundamental equation has been derived. Here we obtain such an equation from a microscopic description using a la...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2022-09-01
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Series: | Physical Review Research |
Online Access: | http://doi.org/10.1103/PhysRevResearch.4.L032039 |