written by Wolfgang Christian, Trisha Salagaram, and Nithaya Chetty

The Recursive Microstates model considers an isolated system consisting of N identical, non-interacting quantum particles.  The model displays the total number of microstates accessible to the system with energy E.  A second windows displays the entropy S(N,E).

For fixed total energy E, the model computes the number of microstates by considering a system of N distinguishable particles to be composed of a subsystem of N - 1 particles and a subsystem of 1 particle. The number of microstates is then constructed by summing the number of ways in which the subsystem of N -1 particles can configure itself with energy E <= E' weighted by the degeneracy of the single particle level with energy E?.

The Recursive Microstates model was developed by Wolfgang Christian, Trisha Salagaram, and Nithaya Chetty using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the  ejs_stp_RecursiveMicrostates.jar file will run the program if Java is installed.

• Download ejs_stp_RecursiveMicrostates.jar - 1974kb Java Archive File

Last Modified June 11, 2014

This file has previous versions.

The source code zip archive contains an EJS-XML representation of the Recursive Microstates Model.   Unzip this archive in your EJS workspace to compile and run this model using EJS.

• Download ejs_stp_RecursiveMicrostates.zip - 373kb Compressed File

Last Modified June 11, 2014

This file has previous versions.