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 ()
	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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Constructor & Destructor Documentation

fermi_propagator::fermi_propagator

(

)

[inline]

fermi_propagator::fermi_propagator	(	mdp_lattice &	mylattice,
		int	nc_,
		int	nspin_ = 4
	)			[inline]

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Member Function Documentation

void fermi_propagator::allocate_fermi_propagator	(	mdp_lattice &	mylattice,
		int	nc_,
		int	nspin_ = 4
	)			[inline]

mdp_complex& fermi_propagator::operator()	(	site	x,
		int	a,
		int	b,
		int	i,
		int	j
	)			[inline]

mdp_matrix fermi_propagator::operator()	(	site	x,
		int	a,
		int	b
	)			[inline]

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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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Member Data Documentation

int fermi_propagator::nc

int fermi_propagator::nspin

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

• /Users/mdipierro/fermiqcd/development/Libraries/fermiqcd_fermi_propagator.h