staples.h File Reference

#include "hila.h"

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Functions
template<typename T >
void	staplesum (const GaugeField< T > &U, Field< T > &staples, Direction d1, Parity par=ALL)
	Sum the staples of link matrices to direction dir.

Function Documentation

staplesum()

template<typename T >

void staplesum	(	const GaugeField< T > &	U,
		Field< T > &	staples,
		Direction	d1,
		Parity	par = ALL
	)

Sum the staples of link matrices to direction dir.

Naive method is to compute:

foralldir(d2) if (d2 != d1)
    stapes[par] += U[d2][X]*U[d1][X+d2]*U[d2][X+d1].dagger()  +
                   U[d2][X-d2].dagger()*U[d1][X-d2]*U[d2][X-d2+d1]

But the method is computed in a slightly more optimized way

Template Parameters

T

Parameters

U	GaugeField to compute staples for
staples	Filed to compute staplesum into at each lattice point
d1	Direction to compute staplesum for
par	Parity to compute staplesum for

Definition at line 28 of file staples.h.