Maximum projection to SU(N) gauge group. More...

#include <projection_Maximum_SU_N.h>

Inheritance diagram for Projection_Maximum_SU_N:

Public Member Functions
	Projection_Maximum_SU_N (const Parameters &params)

	~Projection_Maximum_SU_N ()

void	set_parameters (const Parameters &params)

void	set_parameters (const int Niter, const double Enorm)

void	get_parameters (Parameters &params) const

void	project (Field_G &U, const double alpha, const Field_G &C, const Field_G &Uorg)
	projection U = P[alpha, C, Uorg] More...

void	force_recursive (Field_G &Xi, Field_G &iTheta, const double alpha, const Field_G &Sigmap, const Field_G &C, const Field_G &U)
	force calculation: invalid in this class. More...

Public Member Functions inherited from AProjection< AFIELD >
	AProjection ()

virtual	~AProjection ()

virtual void	project (AFIELD &v, const double alpha, const AFIELD &C, const AFIELD &U)

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

Private Member Functions
void	init (const Parameters &params)

void	tidyup ()

void	reset_field (const Field_G &Uref)

void	maxTr (Field_G &U, const Field_G &V)
	maximization of ReTr[U^\dag V]. More...

void	maxTr_SU2 (const int, const int, Field_G &, Field_G &, Field_G &)
	maximization by SU(2) subgroup. More...

int	mindex (const int i, const int j, const int Nc)
	matrix index for convenience. More...

Private Attributes
int	m_Niter
	maximum iteration of maximization steps More...

double	m_Enorm
	convergence criterion of maximization More...

Bridge::VerboseLevel	m_vl
	verbose level More...

Field_G *	m_At

Field_G *	m_Dlt

Field_G *	m_Ut

Field_G *	m_vt

Field_G *	m_wt

Detailed Description

Maximum projection to SU(N) gauge group.

Maximum projection for SU(N) matrix by Cabibbo-Marinari method, SU(2) subgroup transformation. The code was originally written by Takashi Umeda (1997) in Fortran by explicitely assuming SU(3) group. Genralization to SU((N) was done by H.M. [09 Aug 2012 H.Matsufuru] YAML is implemented. [14 Nov 2012 Y.Namekawa] Multi-threading applied. [09 Jan 2026 H.Matsufuru]

Definition at line 32 of file projection_Maximum_SU_N.h.

Constructor & Destructor Documentation

◆ Projection_Maximum_SU_N()

Projection_Maximum_SU_N::Projection_Maximum_SU_N ( const Parameters & params )

inline

Definition at line 51 of file projection_Maximum_SU_N.h.

◆ ~Projection_Maximum_SU_N()

Projection_Maximum_SU_N::~Projection_Maximum_SU_N ( )

inline

Definition at line 54 of file projection_Maximum_SU_N.h.

Member Function Documentation

◆ force_recursive()

void Projection_Maximum_SU_N::force_recursive	(	Field_G &	Xi,
		Field_G &	iTheta,
		const double	alpha,
		const Field_G &	Sigmap,
		const Field_G &	C,
		const Field_G &	U
	)

virtual

force calculation: invalid in this class.

Implements AProjection< AFIELD >.

Definition at line 190 of file projection_Maximum_SU_N.cpp.

◆ get_parameters()

void Projection_Maximum_SU_N::get_parameters ( Parameters & params ) const

virtual

Implements AProjection< AFIELD >.

Definition at line 122 of file projection_Maximum_SU_N.cpp.

◆ init()

void Projection_Maximum_SU_N::init ( const Parameters & params )

private

Definition at line 24 of file projection_Maximum_SU_N.cpp.

◆ maxTr()

void Projection_Maximum_SU_N::maxTr	(	Field_G &	U,
		const Field_G &	V
	)

private

maximization of ReTr[U^\dag V].

Definition at line 204 of file projection_Maximum_SU_N.cpp.

◆ maxTr_SU2()

void Projection_Maximum_SU_N::maxTr_SU2	(	const int	i1,
		const int	i2,
		Field_G &	Gmax,
		Field_G &	A,
		Field_G &	Udelta
	)

private

maximization by SU(2) subgroup.

Definition at line 292 of file projection_Maximum_SU_N.cpp.

◆ mindex()

int Projection_Maximum_SU_N::mindex	(	const int	i,
		const int	j,
		const int	Nc
	)

inlineprivate

matrix index for convenience.

Definition at line 87 of file projection_Maximum_SU_N.h.

◆ project()

void Projection_Maximum_SU_N::project	(	Field_G &	U,
		const double	alpha,
		const Field_G &	C,
		const Field_G &	Uorg
	)

virtual

projection U = P[alpha, C, Uorg]

Implements AProjection< AFIELD >.

Definition at line 160 of file projection_Maximum_SU_N.cpp.

◆ reset_field()

void Projection_Maximum_SU_N::reset_field ( const Field_G & Uref )

private

Definition at line 132 of file projection_Maximum_SU_N.cpp.

◆ set_parameters() [1/2]

void Projection_Maximum_SU_N::set_parameters	(	const int	Niter,
		const double	Enorm
	)

Definition at line 93 of file projection_Maximum_SU_N.cpp.

◆ set_parameters() [2/2]

void Projection_Maximum_SU_N::set_parameters ( const Parameters & params )

virtual

Implements AProjection< AFIELD >.

Definition at line 67 of file projection_Maximum_SU_N.cpp.

◆ tidyup()

void Projection_Maximum_SU_N::tidyup ( )

private

Definition at line 57 of file projection_Maximum_SU_N.cpp.

Member Data Documentation

◆ class_name

const std::string Projection_Maximum_SU_N::class_name = "Projection_Maximum_SU_N"

static

Definition at line 35 of file projection_Maximum_SU_N.h.

◆ m_At

Field_G* Projection_Maximum_SU_N::m_At

private

Definition at line 43 of file projection_Maximum_SU_N.h.

◆ m_Dlt

Field_G* Projection_Maximum_SU_N::m_Dlt

private

Definition at line 44 of file projection_Maximum_SU_N.h.

◆ m_Enorm

double Projection_Maximum_SU_N::m_Enorm

private

convergence criterion of maximization

Definition at line 39 of file projection_Maximum_SU_N.h.

◆ m_Niter

int Projection_Maximum_SU_N::m_Niter

private

maximum iteration of maximization steps

Definition at line 38 of file projection_Maximum_SU_N.h.

◆ m_Ut

Field_G* Projection_Maximum_SU_N::m_Ut

private

Definition at line 45 of file projection_Maximum_SU_N.h.

◆ m_vl

Bridge::VerboseLevel Projection_Maximum_SU_N::m_vl

private

verbose level

Definition at line 41 of file projection_Maximum_SU_N.h.

◆ m_vt

Field_G* Projection_Maximum_SU_N::m_vt

private

Definition at line 46 of file projection_Maximum_SU_N.h.

◆ m_wt

Field_G* Projection_Maximum_SU_N::m_wt

private

Definition at line 47 of file projection_Maximum_SU_N.h.

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

src/lib/Smear/projection_Maximum_SU_N.h
src/lib/Smear/projection_Maximum_SU_N.cpp

Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Projection_Maximum_SU_N()

◆ ~Projection_Maximum_SU_N()

Member Function Documentation

◆ force_recursive()

◆ get_parameters()

◆ init()

◆ maxTr()

◆ maxTr_SU2()

◆ mindex()

◆ project()

◆ reset_field()

◆ set_parameters() [1/2]

◆ set_parameters() [2/2]

◆ tidyup()

Member Data Documentation

◆ class_name

◆ m_At

◆ m_Dlt

◆ m_Enorm

◆ m_Niter

◆ m_Ut

◆ m_vl

◆ m_vt

◆ m_wt