Study quantum physics with the help of this simulation. Dirac Delta Scattering model displays the time evolution of a plane wave incident on a Dirac delta function barrier. The default wave function shows a right-moving plane wave incident on the barrier. The energy of the wave function can be changed with the slider. You can modify this simulation if you have Ejs installed by right-clicking within the plot and selecting "Open Ejs Model" from the pop-up menu item.

A Dirac delta function d(x) barrier can be thought of as an infinitely high infinitesimally narrow spike at the origin. Although a classical particle cannot pass through such a barrier, quantum mechanics predicts a non-zero transmission probability. This simulation shows a quantum mechanical wave function ?(x,t) with energy eigenvalue E tunneling through a delta function barrier.

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this graphing software.