Package etomica.potential

Class P2ArgonTangAndToennies2003

java.lang.Object

etomica.potential.Potential

etomica.potential.Potential2

etomica.potential.Potential2SoftSpherical

etomica.potential.P2ArgonTangAndToennies2003

All Implemented Interfaces:

IPotential, IPotentialAtomic, Potential2Soft, Potential2Spherical, PotentialSoft

public class P2ArgonTangAndToennies2003
extends Potential2SoftSpherical

Pair potential for argon from Tang and Toennies 2003. This is a true pair potential, rather than a pairwise-additive potential. In this class, only the pair potential is valid, not the gradients, etc. I am unlikely to ever include those...

Field Summary

Fields inherited from class etomica.potential.Potential

space

Fields inherited from class etomica.potential.Potential2SoftSpherical

boundary, dr, gradient

Constructor Summary

Constructors

Constructor	Description
P2ArgonTangAndToennies2003(Space space)

Method Summary

Modifier and Type	Method	Description
double	d2u(double r2)	The second derivative of the pair energy, times the square of the separation: r^2 d^2u/dr^2.
double	du(double r2)	The derivative r*du/dr.
static void	main(java.lang.String[] args)
double	u(double r2)	The energy u.
double	uInt(double rC)	Integral used for corrections to potential truncation.

Methods inherited from interface etomica.potential.IPotential

nBody

Methods inherited from class java.lang.Object

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

Methods inherited from class etomica.potential.Potential

nBody

Methods inherited from class etomica.potential.Potential2SoftSpherical

energy, getRange, gradient, gradient, hyperVirial, integral, setBox, virial

Constructor Detail

P2ArgonTangAndToennies2003

public P2ArgonTangAndToennies2003(Space space)

Method Detail

u

public double u(double r2)

The energy u.

Parameters:

r2 - the square of the distance between the particles.

du

public double du(double r2)

The derivative r*du/dr.

Specified by:

du in interface Potential2Soft

Specified by:

du in class Potential2SoftSpherical

d2u

public double d2u(double r2)

The second derivative of the pair energy, times the square of the separation: r^2 d^2u/dr^2.

Specified by:

d2u in class Potential2SoftSpherical

uInt

public double uInt(double rC)

Integral used for corrections to potential truncation.

Specified by:

uInt in class Potential2SoftSpherical

main

public static void main(java.lang.String[] args)