#include <gauge_field.h>

Inheritance diagram for gauge_field< matrix >:

Collaboration diagram for gauge_field< matrix >:

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Public Types
using	gauge_type = matrix
	The matrix type.

using	fund_type = matrix

using	basetype = hila::arithmetic_type< matrix >
	The base type (double, float, int...)

using	gauge_type_flt = matrix

Public Member Functions
void	set_unity ()
	Set the gauge field to unity.

void	random ()
	Draw a random gauge field.

void	draw_momentum ()
	Gaussian random momentum for each element.

void	zero_momentum ()
	Set the momentum to zero.

void	gauge_update (double eps)
	Update the gauge field with time step eps.

void	add_momentum (Field< SquareMatrix< N, Complex< basetype > > > *force)

void	backup ()
	Make a copy of fields updated in a trajectory.

void	restore_backup ()
	Restore the previous backup.

void	read_file (std::string filename)
	Read the gauge field from a file.

void	write_file (std::string filename)
	Write the gauge field to a file.

double	plaquette ()
	Calculate the plaquette.

double	polyakov (int dir)
	Calculate the polyakov loop.

Field< gauge_type > &	get_momentum (int dir)
	Return a reference to the momentum field.

Field< gauge_type > &	get_gauge (int dir)
	Return a reference to the gauge field.

virtual void	refresh ()
	Recalculate represented or smeared field.

Public Attributes
Field< matrix >	gauge_backup [4]
	Storage for a backup of the gauge field.

Field< matrix >	gauge [4]
	A matrix field for each Direction.

Field< matrix >	momentum [4]

Static Public Attributes
static constexpr int	N = matrix::size
	The size of the matrix.

Detailed Description

template<typename matrix>
class gauge_field< matrix >

A gauge field contains a SU(N) matrix in each Direction for the gauge field and for the momentum. Defines methods for HMC to update the field and the momentum.

Definition at line 193 of file gauge_field.h.

Member Typedef Documentation

◆ fund_type

template<typename matrix >

using gauge_field< matrix >::fund_type = matrix

The fundamental gauge type. In the standard case it is the same as the matrix type

Definition at line 199 of file gauge_field.h.

◆ gauge_type_flt

using gauge_field_base< matrix >::gauge_type_flt = matrix

inherited

If the base type is double, this will be the corresponding floating point type.

Definition at line 47 of file gauge_field.h.

Member Function Documentation

◆ add_momentum()

template<typename matrix >

void gauge_field< matrix >::add_momentum ( Field< SquareMatrix< N, Complex< basetype > > > * force )

inlinevirtual

Project a force term to the algebra and add to the momentum

Reimplemented from gauge_field_base< matrix >.

Definition at line 249 of file gauge_field.h.

Member Data Documentation

◆ momentum

Field<matrix > gauge_field_base< matrix >::momentum[4]

inherited

Also create a momentum field. This is only allocated if necessary

Definition at line 24 of file gauge_field.h.

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

gauge_field.h

Public Types

Public Member Functions

Public Attributes

Static Public Attributes