edu.bu.qsad.app.shooter
Class FxCoulomb

java.lang.Object
  |
  +--java.util.Observable
        |
        +--edu.bu.qsad.app.shooter.FxPotential
              |
              +--edu.bu.qsad.app.shooter.FxCoulomb

All Implemented Interfaces:

Fx, java.io.Serializable

public class FxCoulomb

extends FxPotential

A Coulomb Potential Function used in the Schrodinger Shooter. I just checked my notes, and here is what I think things should be: With length measured in multiples of the Bohr radius (Bohrs) and energy measured in multiples of the ionization energy of the hydrogen atom (Rydbergs), the radial SE is: { - d^2/dr^2 - l(l + 1)/r^2 - 2 Z/r - E } psi(r) = 0

1999-05-21. Still haven't gotten getPlotRange to work properly. If I overexxaggerate the range, then the eigenvalues aren't near the exact values we should be getting. If I underestimate, we don't get enough loops to compute.

See Also:

Serialized Form

Field Summary

protected int	l
protected double	z

Fields inherited from class edu.bu.qsad.app.shooter.FxPotential

energyRange, energyUnits, intersect, label, lengthUnits, xrange, yrange

Constructor Summary

FxCoulomb()

FxCoulomb(int l, double z)

Method Summary

static double[]	computeIntersect(FxCoulomb f, double energy)
double	f(double r)
javax.swing.JPanel	getEditorPanel() Provide a component for editing the function parameters.
double[]	getEnergyRange() return the suggested range of energies for investigating this potential function.
double[]	getIntersect(double e) return the intersection of the potential function with the wavefunction at a given energy.
int	getL()
double[]	getXRange() The range of x values for computing the plot, the wavefunction, and the integral.
double	getZ()
void	reset() reset all properties to their default values.
void	setL(int i)
void	setParameter(java.lang.String key, java.lang.String value)
void	setZ(double d)
protected void	updateValues() whenever any of the properties are changed (using a set() method) make sure to update properties which are dependent upon it.

Methods inherited from class edu.bu.qsad.app.shooter.FxPotential

addEnergyLevel, clearEnergyLevels, getEnergyLevels, getEnergyUnits, getEquationIcon, getIcon, getLabel, getLengthUnits, getPlotRange, getProperties, getXMax, getXMin, getYRange, setCutoff, setEnergyUnits, setEquationIcon, setIcon, setLabel, setLengthUnits, setProperties, setXMax, setXMin

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

z

protected double z

l

protected int l

Constructor Detail

FxCoulomb

public FxCoulomb()

FxCoulomb

public FxCoulomb(int l,
                 double z)

Method Detail

reset

public void reset()

Description copied from class: FxPotential

reset all properties to their default values. override this method to reset default values based in the selected potential function, for example, to set width and height for the Square Well Potential.

Overrides:

reset in class FxPotential

updateValues

protected void updateValues()

Description copied from class: FxPotential

whenever any of the properties are changed (using a set() method) make sure to update properties which are dependent upon it. this is a convenience method which keeps this all in one place. override this for each subclass.

Overrides:

updateValues in class FxPotential

setParameter

public void setParameter(java.lang.String key,
                         java.lang.String value)

Overrides:

setParameter in class FxPotential

getZ

public double getZ()

setZ

public void setZ(double d)

getL

public int getL()

setL

public void setL(int i)

f

public double f(double r)

getEditorPanel

public javax.swing.JPanel getEditorPanel()

Description copied from class: FxPotential

Provide a component for editing the function parameters.

Overrides:

getEditorPanel in class FxPotential

getIntersect

public double[] getIntersect(double e)

Description copied from class: FxPotential

return the intersection of the potential function with the wavefunction at a given energy.

Overrides:

getIntersect in class FxPotential

getXRange

public double[] getXRange()

Description copied from class: FxPotential

The range of x values for computing the plot, the wavefunction, and the integral.

Overrides:

getXRange in class FxPotential

getEnergyRange

public double[] getEnergyRange()

Description copied from class: FxPotential

return the suggested range of energies for investigating this potential function.

Overrides:

getEnergyRange in class FxPotential

computeIntersect

public static final double[] computeIntersect(FxCoulomb f,
                                              double energy)