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The Ejs Dirac Delta Scattering model displays the time evolution of a plane wave incident on a Dirac delta function barrier. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the ejs_DiracDeltaScattering.jar file will run the program if Java is installed. 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. Ejs Dirac Delta Scattering model was created using the Easy Java Simulations (Ejs) modeling tool. Ejs is a part of the Open Source Physics Project and is designed to make it easier to access, modify, and generate computer models. Additional Open Source Physics programs for quantum mechanics are available. They can be found by searching ComPADRE for Open Source Physics, OSP, or Ejs.
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