SubBasis Class Reference

#include <helpers.h>

Public Member Functions
	SubBasis ()
	SubBasis (int K, MomBasis &orig, int dim)
	SubBasis (const SubBasis &orig)
	SubBasis (SubBasis &&orig)
virtual	~SubBasis ()
SubBasis &	operator= (const SubBasis &orig)
SubBasis &	operator= (SubBasis &&orig)
int	getdim () const
int	getspacedim () const
void	Print () const
void	Slad_min (SubBasis &orig)
void	Get (int index, myint &upket, myint &downket) const
std::pair< myint, myint >	Get (int index) const
double	GetCoeff (int i, int j) const
double &	GetCoeff (int i, int j)
void	SetCoeff (int i, int j, double value)
int	getindex (myint upket, myint downket) const
void	Normalize ()
void	ToSparseMatrix ()
const SparseMatrix_CCS &	getSparse () const
void	SetCoeff (matrix &&coeffs)

Private Attributes
int	L
	number of sites More...
int	Nu
	number of up electrons More...
int	Nd
	number of up electrons More...
std::unique_ptr< class matrix, class MyDeleter >	coeffs
	the coefficient of the basis More...
std::unique_ptr< class SparseMatrix_CCS >	s_coeffs
	same as above but sparse. You have to fill it first More...
std::shared_ptr< class KBlock >	basis
	shared pointer to KBlock basis. We all share the pointer. More...

Friends
class	SpinBasis

Detailed Description

Stores a basis in a K block. Has a coefficient matrix that stores all the basis vector of this subbasis as linear combination in a KBlock basis.

Definition at line 200 of file helpers.h.

Constructor & Destructor Documentation

SubBasis::SubBasis ( )

inline

Definition at line 205 of file helpers.h.

Here is the caller graph for this function:

SubBasis::SubBasis	(	int	K,
		MomBasis &	orig,
		int	dim
	)

Parameters

K	which K block
orig	the basis from which to select a K block
dim	the dimension of the subbasis

Definition at line 507 of file helpers.cpp.

Here is the call graph for this function:

SubBasis::SubBasis

(

const SubBasis &

orig

)

Definition at line 542 of file helpers.cpp.

SubBasis::SubBasis

(

SubBasis &&

orig

)

Definition at line 562 of file helpers.cpp.

virtual SubBasis::~SubBasis ( )

inlinevirtual

Definition at line 209 of file helpers.h.

Member Function Documentation

void SubBasis::Get	(	int	index,
		myint &	upket,
		myint &	downket
	)		const

Definition at line 719 of file helpers.cpp.

Here is the call graph for this function:

std::pair< myint, myint > SubBasis::Get

(

int

index

)

const

Definition at line 727 of file helpers.cpp.

double SubBasis::GetCoeff	(	int	i,
		int	j
	)		const

Definition at line 732 of file helpers.cpp.

double & SubBasis::GetCoeff	(	int	i,
		int	j
	)

Definition at line 737 of file helpers.cpp.

int SubBasis::getdim

(

)

const

Returns

the dimension of the subspace

Definition at line 635 of file helpers.cpp.

Here is the caller graph for this function:

int SubBasis::getindex	(	myint	upket,
		myint	downket
	)		const

Parameters

upket	the up ket
downket	the down ket

Returns

the index of the basisvector with these kets

Definition at line 659 of file helpers.cpp.

Here is the caller graph for this function:

int SubBasis::getspacedim

(

)

const

Returns

the dimension of the parent space in which this subspace is spanned

Definition at line 646 of file helpers.cpp.

Here is the caller graph for this function:

const SparseMatrix_CCS & SubBasis::getSparse

(

)

const

Access operator for the Sparse matrix. First call ToSparseMatrix().

Returns

the sparse matrix

Definition at line 787 of file helpers.cpp.

void SubBasis::Normalize

(

)

Normalize all basisvectors in this subspace

Definition at line 755 of file helpers.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

SubBasis & SubBasis::operator=

(

const SubBasis &

orig

)

Definition at line 572 of file helpers.cpp.

SubBasis & SubBasis::operator=

(

SubBasis &&

orig

)

Definition at line 594 of file helpers.cpp.

void SubBasis::Print

(

)

const

Definition at line 609 of file helpers.cpp.

Here is the call graph for this function:

void SubBasis::SetCoeff	(	int	i,
		int	j,
		double	value
	)

Definition at line 742 of file helpers.cpp.

void SubBasis::SetCoeff

(

matrix &&

coeffs

)

Definition at line 747 of file helpers.cpp.

void SubBasis::Slad_min

(

SubBasis &

orig

)

Do a ladder operator of S^- on a SubBasis and store it in this SubBasis

Parameters

orig	the original SubBasis on which we ladder

Definition at line 674 of file helpers.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void SubBasis::ToSparseMatrix

(

)

Converts the coefficient matrix to a sparse format and delete the dense matrix afterwards

Definition at line 774 of file helpers.cpp.

Friends And Related Function Documentation

friend class SpinBasis

friend

Definition at line 202 of file helpers.h.

Member Data Documentation

std::shared_ptr<class KBlock> SubBasis::basis

private

shared pointer to KBlock basis. We all share the pointer.

Definition at line 258 of file helpers.h.

std::unique_ptr<class matrix, class MyDeleter> SubBasis::coeffs

private

the coefficient of the basis

Definition at line 252 of file helpers.h.

int SubBasis::L

private

number of sites

Definition at line 245 of file helpers.h.

int SubBasis::Nd

private

number of up electrons

Definition at line 249 of file helpers.h.

int SubBasis::Nu

private

number of up electrons

Definition at line 247 of file helpers.h.

std::unique_ptr<class SparseMatrix_CCS> SubBasis::s_coeffs

private

same as above but sparse. You have to fill it first

Definition at line 255 of file helpers.h.

---

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

• helpers.h
• helpers.cpp