Extending the diffusion approximation to the boundary using an integrated diffusion model
Extending the diffusion approximation to the boundary using an integrated diffusion model
The widely used diffusion approximation is inaccurate to describe the transport behaviors near surfaces and interfaces. To solve such stochastic processes, an integro-differential equation, such as the Boltzmann transport equation (BTE), is typically required. In this work, we show that it is possible to keep the simplicity of the diffusion …