Wilson loop measurement. More...

#include <wilsonLoop.h>

Public Member Functions
	WilsonLoop ()

virtual	~WilsonLoop ()

virtual void	set_parameters (const Parameters &params)
	setting parameters. More...

void	set_parameters (int Nspc_size, int Ntmp_size, int Ntype)

void	set_parameter_verboselevel (const Bridge::VerboseLevel vl)

double	measure (Field_G &U)
	main function to measure Wilson loops. More...

int	index_wloop (int i_spc, int i_tmp, int i_type)
	index for Wilson loop variable. More...

Static Public Attributes
static const std::string	class_name = "WilsonLoop"

Protected Attributes
Bridge::VerboseLevel	m_vl

Private Types
typedef std::vector< int >	unit_vec

Private Member Functions
	WilsonLoop (const WilsonLoop &)

WilsonLoop &	operator= (const WilsonLoop &)

void	init ()
	initial setup independent of parameters. More...

double	calc_wloop (Field_G &Uspc, int t_ext)
	temporal gauge fixing of extended gauge field. More...

void	redef_Uspc (Field_G &Uspc, Field_G &Uext, int j, int nu, std::vector< int > &unit_v)
	redefinition of product of spatial link variables. More...

void	set_extfield (Field_G &Uext, Field_G &Uorg)
	setup of extended gauge field. More...

void	gfix_temporal (Field_G &Uext)
	temporal gauge fixing of extended gauge field. More...

Private Attributes
std::string	m_filename_output

int	m_Nspc_size
	parameters set by user More...

int	m_Ntmp_size
	spatial size of loop More...

int	m_Ntype
	number of measured loop-type More...

int	m_Ntype_max
	internal data members More...

int	m_Nx_ext
	size of extended gauge config. More...

int	m_Ny_ext
	size of extended gauge config. More...

int	m_Nz_ext
	size of extended gauge config. More...

int	m_Nt_ext
	size of extended gauge config. More...

int	m_Nvol_ext
	volume of extended gauge config. More...

std::vector< unit_vec >	m_Nunit

std::vector< int >	m_Nmax

Detailed Description

Wilson loop measurement.

This class measures Wilson loops in spatial off-axis directions as well as on-axis for a given gauge configuration. The construction of off-axis loops originates from the Fortran code written by Takashi Umeda (1997), while details were modified. The calculation is performed in the following steps. (1) on each node, extended gauge configuration necessary to determine the whole Wilson loop is set. (2) temporal gauge fixing is performed. (3) spatial products of link variables are obtained, from which Wilson loops are constructed. 28 May 2012 H.Matsufuru YAML is implemented. [14 Nov 2012 Y.Namekawa]

Definition at line 43 of file wilsonLoop.h.

Member Typedef Documentation

typedef std::vector<int> WilsonLoop::unit_vec

private

Definition at line 67 of file wilsonLoop.h.

Constructor & Destructor Documentation

WilsonLoop::WilsonLoop ( )

inline

Definition at line 72 of file wilsonLoop.h.

virtual WilsonLoop::~WilsonLoop ( )

inlinevirtual

Definition at line 78 of file wilsonLoop.h.

WilsonLoop::WilsonLoop ( const WilsonLoop & )

private

Member Function Documentation

double WilsonLoop::calc_wloop	(	Field_G &	Uspc,
		int	t_ext
	)

private

temporal gauge fixing of extended gauge field.

Definition at line 241 of file wilsonLoop.cpp.

void WilsonLoop::gfix_temporal ( Field_G & Uext )

private

temporal gauge fixing of extended gauge field.

Definition at line 551 of file wilsonLoop.cpp.

int WilsonLoop::index_wloop	(	int	i_spc,
		int	i_tmp,
		int	i_type
	)

inline

index for Wilson loop variable.

Definition at line 96 of file wilsonLoop.h.

void WilsonLoop::init ( )

private

initial setup independent of parameters.

Definition at line 98 of file wilsonLoop.cpp.

double WilsonLoop::measure ( Field_G & U )

main function to measure Wilson loops.

setting extended config.

fixing extended config to temporal gauge.

on/off-diagonal direction type

permutation of direction

output: same format as Fortran code

Definition at line 147 of file wilsonLoop.cpp.

WilsonLoop& WilsonLoop::operator= ( const WilsonLoop & )

private

void WilsonLoop::redef_Uspc	(	Field_G &	Uspc,
		Field_G &	Uext,
		int	j,
		int	nu,
		std::vector< int > &	unit_v
	)

private

redefinition of product of spatial link variables.

this loop counting is for exact comparison to Fortran code.

Definition at line 286 of file wilsonLoop.cpp.

void WilsonLoop::set_extfield	(	Field_G &	Uext,
		Field_G &	Uorg
	)

private

setup of extended gauge field.

Definition at line 381 of file wilsonLoop.cpp.

void WilsonLoop::set_parameter_verboselevel ( const Bridge::VerboseLevel vl )

inline

Definition at line 90 of file wilsonLoop.h.

void WilsonLoop::set_parameters ( const Parameters & params )

virtual

setting parameters.

Definition at line 19 of file wilsonLoop.cpp.

void WilsonLoop::set_parameters	(	int	Nspc_size,
		int	Ntmp_size,
		int	Ntype
	)

The following setting explicitly depends on the definition of unit vectors.

Definition at line 48 of file wilsonLoop.cpp.

Member Data Documentation

const std::string WilsonLoop::class_name = "WilsonLoop"

static

Definition at line 46 of file wilsonLoop.h.

std::string WilsonLoop::m_filename_output

private

Definition at line 52 of file wilsonLoop.h.

std::vector<int> WilsonLoop::m_Nmax

private

Definition at line 69 of file wilsonLoop.h.

int WilsonLoop::m_Nspc_size

private

parameters set by user

spatial size of loop

Definition at line 55 of file wilsonLoop.h.

int WilsonLoop::m_Nt_ext

private

size of extended gauge config.

Definition at line 64 of file wilsonLoop.h.

int WilsonLoop::m_Ntmp_size

private

spatial size of loop

Definition at line 56 of file wilsonLoop.h.

int WilsonLoop::m_Ntype

private

number of measured loop-type

Definition at line 57 of file wilsonLoop.h.

int WilsonLoop::m_Ntype_max

private

internal data members

maximum size of loop-type

Definition at line 60 of file wilsonLoop.h.

std::vector<unit_vec> WilsonLoop::m_Nunit

private

Definition at line 68 of file wilsonLoop.h.

int WilsonLoop::m_Nvol_ext

private

volume of extended gauge config.

Definition at line 65 of file wilsonLoop.h.

int WilsonLoop::m_Nx_ext

private

size of extended gauge config.

Definition at line 61 of file wilsonLoop.h.

int WilsonLoop::m_Ny_ext

private

size of extended gauge config.

Definition at line 62 of file wilsonLoop.h.

int WilsonLoop::m_Nz_ext

private

size of extended gauge config.

Definition at line 63 of file wilsonLoop.h.

Bridge::VerboseLevel WilsonLoop::m_vl

protected

Definition at line 49 of file wilsonLoop.h.

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

src/lib/Measurements/Gauge/wilsonLoop.h
src/lib/Measurements/Gauge/wilsonLoop.cpp

Public Member Functions

Static Public Attributes

Protected Attributes

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation