Module simpa.core

Package simpa.core.api.track

Class TaosSymplecticIntegrator

java.lang.Object

simpa.core.api.track.TaosSymplecticIntegrator

public class TaosSymplecticIntegrator
extends Object

Method Summary

Modifier and Type	Method	Description
static void	setOmega(double om)	Sets the coupling constant for Tao's method.
void	setPotentialProvider(PotentialProvider potProvide)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

setOmega

public static void setOmega(double om)

Sets the coupling constant for Tao's method. This is a specific parameter needed for the integrator to work properly. Its value is between 0.. 2*PI. There is no easy way to determine its value in advance, but trying a few values is a good strategy. A good value is when the energy oscillation has the smallest value. Adding a TrajectoryObserver to the ParticleTrackerTask produces a trajectory file, which contains the particle energy at each step. Plot (with gnuplot for example) this energy deviation for a few trial run and find the minimum. If the omega parameter is very far, the particle can be lost quickly.

Parameters:

om - The omega value.

setPotentialProvider

public void setPotentialProvider(PotentialProvider potProvide)