Search Results for "drift diffusion"

ViennaSHE is a modern semiconductor device simulator for 1D, 2D and 3D device simulation. It relies on deterministic solutions of the Boltzmann Transport Equation using Spherical Harmonics Expansions.

... in the simulated paradigm and the activity of the rule 1 versus rule 2 representing population biases a decision module. The decision module implements a three dimensional nonlinear drift-diffusion process derived from a physiological winner-take-all network with four selective populations, representing the possible behavioral decisions. The decision module integrates top-down input from the rule module with bottom-up input from the decision module to produce decisions and reaction time distributions.

The need for speed is always a challenge for large-scale stochastic simulation. This software is based on a parallel stochastic simulation algorithm already implemented on Graphics Processing Unit (GPU) for inhomogeneous reaction-drift-diffusion systems. We suggest an improved choice of time step which turns out to be almost 3 or even more times fast with nearly identical accuracy. The software is now completely implemented in C++ and OpenCL which only depends on boost library and GPU vendor’s...

FSEM is a set of freeFEM++ scripts and C++ code to solve the drift-diffusion (DD) semiconductor device equations by the finite element method (FEM). It was initially developed for the nonlinear study of semiconductors under high optical injection.