fermi_propagator Class Reference

a Wilson/Clover quark propagator (all 12 components) More...

#include <fermiqcd_fermi_propagator.h>

Inheritance diagram for fermi_propagator:

List of all members.

Public Member Functions
	fermi_propagator (mdp_lattice &mylattice, int nc_, int nspin_=4)
void	allocate_fermi_propagator (mdp_lattice &mylattice, int nc_, int nspin_=4)
mdp_matrix	operator() (site x, int a, int b)
mdp_complex &	operator() (site x, int a, int b, int i, int j)
Public Attributes
int	nspin
int	nc
Friends
void	generate (fermi_propagator &S, gauge_field &U, coefficients &coeff, mdp_real absolute_precision=fermi_inversion_precision, mdp_real relative_precision=0, int max_steps=2000, void(*smf)(fermi_field &, gauge_field &, coefficients &)=0, coefficients smear_coeff=coefficients(), int comp=0)

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Detailed Description

a Wilson/Clover quark propagator (all 12 components)

Example of how to make a pion:

    gauge_field U(lattice,nc);
    U.load("myfield");
    fermi_propagator S(lattice,nc);
    coefficients quark;
    quark["kappa"]=1.12;
    generate(S,U,quark);
    vector<float> sum(U.lattice.size(TIME));
    forallsites(x) 
      for(int alpha=0; alpha<4; alpha++)
        for(int beta=0; beta<4; beta++)
           sum(x(0))+=real(trace(S(x,alpha,beta)*
                      hermitian(S(x,beta,alpha))));
    

Note that S(x,alpha,beta,i,j) is

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Friends And Related Function Documentation

void generate (  fermi_propagator &  S, gauge_field &  U, coefficients &  coeff, mdp_real  absolute_precision = fermi_inversion_precision, mdp_real  relative_precision = 0, int  max_steps = 2000, void(*)(fermi_field &, gauge_field &, coefficients &)  smf = 0, coefficients  smear_coeff = coefficients(), int  comp = 0 )  [friend]

makes the quark propagator Parameters: S  the output propagator U  the input gauge configuration coeff  the parameters to be passed to the action absolute_precision  the target absolute precision for inversion relative_precision  the target relative precision for invcersion max_steps  the max number of steps in inversion smf  pointer to smearing function (smear sources) smear_coeff  parameters for smearing

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The documentation for this class was generated from the following file:

• fermiqcd_fermi_propagator.h

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