org.opensourcephysics.sip.ch16
Class Schroedinger

java.lang.Object
  org.opensourcephysics.sip.ch16.Schroedinger

All Implemented Interfaces:

ODE

public class Schroedinger
extends java.lang.Object
implements ODE

Schroedinger solves the time independent Schroedinger equation

Constructor Summary

Schroedinger()

Method Summary

double	evaluatePotential(double x) Evaluates the potential using a step at x=0.
void	getRate(double[] state, double[] rate) Gets the rate using the given state.
double[]	getState() Gets the state.
void	initialize() Constructs a simple quantum mechanical model.

Methods inherited from class java.lang.Object

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

Constructor Detail

Schroedinger

public Schroedinger()

Method Detail

initialize

public void initialize()

Constructs a simple quantum mechanical model. The potential enegy is coded into the evaluate method.

Parameters:

numberOfPoints - number of grid points

a - half interval

getState

public double[] getState()

Gets the state. The state for the ode solver: phi, dphi/dx, x.

Specified by:

getState in interface ODE

Returns:

the state

getRate

public void getRate(double[] state,
                    double[] rate)

Gets the rate using the given state.

Specified by:

getRate in interface ODE

Parameters:

state -

rate -

evaluatePotential

public double evaluatePotential(double x)

Evaluates the potential using a step at x=0. Change this function to model other qm systems.

Parameters:

x -

Returns: