written by Wolfgang Christian

The QM Momentum Space program displays the time evolution of the position-space wave function and the associated momentum-space wave function. The default wave function is a Gaussian wave packet in a harmonic oscillator.  Additional states and other potential energy functions can be specified using the Display | Switch GUI menu item.  

QM Momentum Space is one of 18 Open Source Physics programs that model time-dependent quantum mechanics using an energy eigenstate expansion.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the qm_fft.jar file will run the program if Java is installed.  Other programs provide additional visualizations.  They can be found by searching ComPADRE for Open Source Physics, OSP, or Superposition.

• Download qm_fft.jar - 589kb Java Archive File

Published April 8, 2008
Last Modified May 15, 2008

This file has previous versions.

A pdf document that briefly describes the QM Momentum Space program. It describes how to use the qm_fft.jar file and contains short tutorial exercises and explorations for use with the qm_fft.jar file.

• Download qm_fft.pdf - 555kb Adobe PDF Document

Published April 8, 2008
Last Modified May 12, 2008

This file has previous versions.

The materials distributed in this zip file are in support of the QM Superposition program.  This distribution contains the QM Momentum Space program, documentation and exercises, and additional parameter sets (xml files) for use with the QM Momentum Space program.

• Download qm_fft_distribution.zip - 1034kb Compressed File

Published April 8, 2008
Last Modified May 15, 2008

This file has previous versions.