Topological Charge measurement. More...

#include <topologicalCharge.h>

Public Member Functions
	TopologicalCharge ()

	TopologicalCharge (const Parameters &params)

virtual	~TopologicalCharge ()

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

void	set_parameters (const double c_plaq, const double c_rect, const int max_mom)

void	set_parameter_verboselevel (const Bridge::VerboseLevel vl)

virtual void	get_parameters (Parameters &params) const
	getting parameters. More...

double	measure (const Field_G &U)
	main function to measure Topological Charge. The field strength is constructed inside the function. More...

void	measure_topological_charge (const double tt)

void	measure_topological_density_t (const double tt)
	Measure topological charge density corr[t]= $1/V_{xyz}\sum_{x,y,z}q(x,y,z,t)$ in temporal direction using the stored m_Fmunu and print out the result using an argument tt. More...

void	measure_topological_density_t_FT (const double tt)
	Measure Fourier transformation of topological charge density corr[t]= $1/V_{xyz}\sum_{x,y,z}\cos(p_xx+p_yy+p_zz)q(x,y,z,t)$ using the stored m_Fmunu and print out the result using an argument tt. More...

void	measure_topological_density_x (const double tt)
	Measure topological charge density corr[x]= $1/V_{yzt}\sum_{y,z,t}q(x,y,z,t)$ in x direction using the stored m_Fmunu and print out the result using an argument tt. More...

void	measure_topological_density_x_FT (const double tt)
	Measure Fourier transformation of topological charge density corr[x]= $1/V_{yzt}\sum_{y,z,t}\cos(p_yy+p_zz+p_tt)q(x,y,z,t)$ using the stored m_Fmunu and print out the result using an argument tt. More...

void	measure_topological_density_y (const double tt)
	Measure topological charge density corr[y]= $1/V_{xzt}\sum_{x,z,t}q(x,y,z,t)$ in y direction using the stored m_Fmunu and print out the result using an argument tt. More...

void	measure_topological_density_y_FT (const double tt)
	Measure Fourier transformation of topological charge density corr[y]= $1/V_{xzt}\sum_{x,z,t}\cos(p_xx+p_zz+p_tt)q(x,y,z,t)$ using the stored m_Fmunu and print out the result using an argument tt. More...

void	measure_topological_density_z (const double tt)
	Measure topological charge density corr[z]= $1/V_{xyt}\sum_{x,y,t}q(x,y,z,t)$ in z direction using the stored m_Fmunu and print out the result using an argument tt. More...

void	measure_topological_density_z_FT (const double tt)
	Measure Fourier transformation of topological charge density corr[z]= $1/V_{xyt}\sum_{x,y,t}\cos(p_xx+p_yy+p_tt)q(x,y,z,t)$ using the stored m_Fmunu and print out the result using an argument tt. More...

void	set_field_strength (const Field_G &U)
	Construct the anti-Hermitian traceless field strength $F_{\mu\nu}$ by the link U. Should be called before measuring the topological charge and density. More...

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

Protected Attributes
Bridge::VerboseLevel	m_vl

Private Member Functions
	TopologicalCharge (const TopologicalCharge &)

TopologicalCharge &	operator= (const TopologicalCharge &)

Private Attributes
std::string	m_filename_output

double	m_c_plaq

double	m_c_rect

int	m_max_mom
	maximum of momentum for Fourier transformation: p_x=[0,max_mom], p_y=[-max_mom,max_mom], p_z=[-max_mom,max_mom] More...

FieldStrength	m_field_strength

std::vector< Field_G >	m_Fmunu_plaq

std::vector< Field_G >	m_Fmunu_1x1

std::vector< Field_G >	m_Fmunu_1x2

bool	m_flag_field_set

Detailed Description

Topological Charge measurement.

This class measures a topological charge defined by a clover leaf on the lattice. [01 Jan 2014 Y.Namekawa] Add three members m_Fmunu_1x1, m_Fmunu_1x2, m_Fmunu_plaq to store a field strength. Whether they have already been stored or not is specified by a member m_flag_field_set. Add a function set_field_strength() to store a field strength into the member m_Fmunu. Move a function contract_epsilon_tensor() to fieldStrength.h renaming contract_2F(). Add a function measure_topological_charge. Add four functions measure_topological_density_t(), measure_topological_density_x(), measure_topological_density_y(), measure_topological_density_z(). [25 May 2017 Y.Taniguchi]

Definition at line 43 of file topologicalCharge.h.

Constructor & Destructor Documentation

◆ TopologicalCharge() [1/3]

TopologicalCharge::TopologicalCharge ( )

inline

Definition at line 68 of file topologicalCharge.h.

◆ TopologicalCharge() [2/3]

TopologicalCharge::TopologicalCharge ( const Parameters & params )

inline

Definition at line 75 of file topologicalCharge.h.

◆ ~TopologicalCharge()

virtual TopologicalCharge::~TopologicalCharge ( )

inlinevirtual

Definition at line 83 of file topologicalCharge.h.

◆ TopologicalCharge() [3/3]

TopologicalCharge::TopologicalCharge ( const TopologicalCharge & )

private

Member Function Documentation

◆ get_parameters()

void TopologicalCharge::get_parameters ( Parameters & params ) const

virtual

getting parameters.

Definition at line 49 of file topologicalCharge.cpp.

◆ measure()

double TopologicalCharge::measure ( const Field_G & U )

main function to measure Topological Charge. The field strength is constructed inside the function.

Definition at line 80 of file topologicalCharge.cpp.

◆ measure_topological_charge()

void TopologicalCharge::measure_topological_charge ( const double tt )

Measure topological charge using the stored m_Fmunu. The field strength should be constructed by the link U beforehand. This is an upper compatible of measure() including a measurement with Fmunu_plaq. The flow time tt in the argument is used just for print out. The function measure() is better if you are not interested in the topological charge density correlation functions.

Definition at line 182 of file topologicalCharge.cpp.

◆ measure_topological_density_t()

void TopologicalCharge::measure_topological_density_t ( const double tt )

Measure topological charge density corr[t]= $1/V_{xyz}\sum_{x,y,z}q(x,y,z,t)$ in temporal direction using the stored m_Fmunu and print out the result using an argument tt.

Definition at line 251 of file topologicalCharge.cpp.

◆ measure_topological_density_t_FT()

void TopologicalCharge::measure_topological_density_t_FT ( const double tt )

Measure Fourier transformation of topological charge density corr[t]= $1/V_{xyz}\sum_{x,y,z}\cos(p_xx+p_yy+p_zz)q(x,y,z,t)$ using the stored m_Fmunu and print out the result using an argument tt.

Definition at line 373 of file topologicalCharge.cpp.

◆ measure_topological_density_x()

void TopologicalCharge::measure_topological_density_x ( const double tt )

Measure topological charge density corr[x]= $1/V_{yzt}\sum_{y,z,t}q(x,y,z,t)$ in x direction using the stored m_Fmunu and print out the result using an argument tt.

Definition at line 503 of file topologicalCharge.cpp.

◆ measure_topological_density_x_FT()

void TopologicalCharge::measure_topological_density_x_FT ( const double tt )

Measure Fourier transformation of topological charge density corr[x]= $1/V_{yzt}\sum_{y,z,t}\cos(p_yy+p_zz+p_tt)q(x,y,z,t)$ using the stored m_Fmunu and print out the result using an argument tt.

Definition at line 626 of file topologicalCharge.cpp.

◆ measure_topological_density_y()

void TopologicalCharge::measure_topological_density_y ( const double tt )

Measure topological charge density corr[y]= $1/V_{xzt}\sum_{x,z,t}q(x,y,z,t)$ in y direction using the stored m_Fmunu and print out the result using an argument tt.

Definition at line 756 of file topologicalCharge.cpp.

◆ measure_topological_density_y_FT()

void TopologicalCharge::measure_topological_density_y_FT ( const double tt )

Measure Fourier transformation of topological charge density corr[y]= $1/V_{xzt}\sum_{x,z,t}\cos(p_xx+p_zz+p_tt)q(x,y,z,t)$ using the stored m_Fmunu and print out the result using an argument tt.

Definition at line 879 of file topologicalCharge.cpp.

◆ measure_topological_density_z()

void TopologicalCharge::measure_topological_density_z ( const double tt )

Measure topological charge density corr[z]= $1/V_{xyt}\sum_{x,y,t}q(x,y,z,t)$ in z direction using the stored m_Fmunu and print out the result using an argument tt.

Definition at line 1009 of file topologicalCharge.cpp.

◆ measure_topological_density_z_FT()

void TopologicalCharge::measure_topological_density_z_FT ( const double tt )

Measure Fourier transformation of topological charge density corr[z]= $1/V_{xyt}\sum_{x,y,t}\cos(p_xx+p_yy+p_tt)q(x,y,z,t)$ using the stored m_Fmunu and print out the result using an argument tt.

Definition at line 1132 of file topologicalCharge.cpp.

◆ operator=()

TopologicalCharge& TopologicalCharge::operator= ( const TopologicalCharge & )

private

◆ set_field_strength()

void TopologicalCharge::set_field_strength ( const Field_G & U )

Construct the anti-Hermitian traceless field strength $F_{\mu\nu}$ by the link U. Should be called before measuring the topological charge and density.

Definition at line 1280 of file topologicalCharge.cpp.

◆ set_parameter_verboselevel()

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

inline

Definition at line 95 of file topologicalCharge.h.

◆ set_parameters() [1/2]

void TopologicalCharge::set_parameters	(	const double	c_plaq,
		const double	c_rect,
		const int	max_mom
	)

Definition at line 61 of file topologicalCharge.cpp.

◆ set_parameters() [2/2]

void TopologicalCharge::set_parameters ( const Parameters & params )

virtual

setting parameters.

Definition at line 19 of file topologicalCharge.cpp.

Member Data Documentation

◆ class_name

const std::string TopologicalCharge::class_name = "TopologicalCharge"

static

Definition at line 46 of file topologicalCharge.h.

◆ m_c_plaq

double TopologicalCharge::m_c_plaq

private

Definition at line 54 of file topologicalCharge.h.

◆ m_c_rect

double TopologicalCharge::m_c_rect

private

Definition at line 55 of file topologicalCharge.h.

◆ m_field_strength

FieldStrength TopologicalCharge::m_field_strength

private

Definition at line 60 of file topologicalCharge.h.

◆ m_filename_output

std::string TopologicalCharge::m_filename_output

private

Definition at line 52 of file topologicalCharge.h.

◆ m_flag_field_set

bool TopologicalCharge::m_flag_field_set

private

Definition at line 65 of file topologicalCharge.h.

◆ m_Fmunu_1x1

std::vector<Field_G> TopologicalCharge::m_Fmunu_1x1

private

Definition at line 63 of file topologicalCharge.h.

◆ m_Fmunu_1x2

std::vector<Field_G> TopologicalCharge::m_Fmunu_1x2

private

Definition at line 64 of file topologicalCharge.h.

◆ m_Fmunu_plaq

std::vector<Field_G> TopologicalCharge::m_Fmunu_plaq

private

Definition at line 62 of file topologicalCharge.h.

◆ m_max_mom

int TopologicalCharge::m_max_mom

private

maximum of momentum for Fourier transformation: p_x=[0,max_mom], p_y=[-max_mom,max_mom], p_z=[-max_mom,max_mom]

Definition at line 58 of file topologicalCharge.h.

◆ m_vl

Bridge::VerboseLevel TopologicalCharge::m_vl

protected

Definition at line 49 of file topologicalCharge.h.

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

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

Public Member Functions

Static Public Attributes

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ TopologicalCharge() [1/3]

◆ TopologicalCharge() [2/3]

◆ ~TopologicalCharge()

◆ TopologicalCharge() [3/3]

Member Function Documentation

◆ get_parameters()

◆ measure()

◆ measure_topological_charge()

◆ measure_topological_density_t()

◆ measure_topological_density_t_FT()

◆ measure_topological_density_x()

◆ measure_topological_density_x_FT()

◆ measure_topological_density_y()

◆ measure_topological_density_y_FT()

◆ measure_topological_density_z()

◆ measure_topological_density_z_FT()

◆ operator=()

◆ set_field_strength()

◆ set_parameter_verboselevel()

◆ set_parameters() [1/2]

◆ set_parameters() [2/2]

Member Data Documentation

◆ class_name

◆ m_c_plaq

◆ m_c_rect

◆ m_field_strength

◆ m_filename_output

◆ m_flag_field_set

◆ m_Fmunu_1x1

◆ m_Fmunu_1x2

◆ m_Fmunu_plaq

◆ m_max_mom

◆ m_vl