written by Wolfgang Christian

The Kicked Rotor model shows the dynamics of a rotating bar (rotor) that is kicked periodically. This model is also known as the standard map or the Chirikov-Taylor map. Each impulsive kick changes the angular momentum of the rotor instantaneously and the bar rotates uniformly between kicks. Clicking in the Poincare section sets the initial conditions of the rotor.  You can examine and 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.  

The Kicked Rotor Dynamics model was created using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the ejs_chaos_KickedRotorDynamics.jar file will run the program if Java is installed.  EJS is a part of the Open Source Physics Project and is designed to make it easier to access, modify, and generate computer models.

• Download ejs_chaos_KickedRotorDynamics.jar - 1226kb Java Archive File

Published July 1, 2008
Last Modified June 10, 2014

This file has previous versions.

The Kicked Rotor Map models the return map of a rotating bar (rotor) that is kicked periodically.  This model is faster than the Kicked Rotor Dynamics model because the rotor motion is not shown in real time.

• Download ejs_chaos_KickedRotorMap.jar - 668kb Java Archive File

Last Modified August 20, 2009

The source code zip archive contains an XML representation of the Kicked Rotor Dynamics model.   Unzip this archive in your EJS workspace to compile and run this model using EJS.

• Download ejs_chaos_KickedRotorDynamics.zip - 45kb Compressed File

Last Modified August 20, 2009