#include <TensorKM.h>

Inheritance diagram for CheMPS2::TensorKM:

Collaboration diagram for CheMPS2::TensorKM:

Public Member Functions
	TensorKM (const int boundary_index, const char identity, const int Idiff, const SyBookkeeper *denBK)
	Constructor. More...

virtual	~TensorKM ()
	Destructor.

void	construct (TensorT *denT)

Public Member Functions inherited from CheMPS2::TensorOperator
	TensorOperator (const int boundary_index, const int two_j, const int n_elec, const int n_irrep, const bool moving_right, const bool prime_last, const bool jw_phase, const SyBookkeeper bk_up, const SyBookkeeper bk_down)
	Constructor. More...

virtual	~TensorOperator ()
	Destructor.

int	gNKappa () const
	Get the number of symmetry blocks. More...

double *	gStorage ()
	Get the pointer to the storage. More...

int	gKappa (const int N1, const int TwoS1, const int I1, const int N2, const int TwoS2, const int I2) const
	Get the index corresponding to a certain tensor block. More...

int	gKappa2index (const int kappa) const
	Get the storage jump corresponding to a certain tensor block. More...

double *	gStorage (const int N1, const int TwoS1, const int I1, const int N2, const int TwoS2, const int I2)
	Get the pointer to the storage of a certain tensor block. More...

int	gIndex () const
	Get the boundary index. More...

int	get_2j () const
	Get twice the spin of the tensor operator. More...

int	get_nelec () const
	Get how many electrons there are more in the symmetry sector of the lower leg compared to the upper leg. More...

int	get_irrep () const
	Get the (real-valued abelian) point group irrep difference between the symmetry sectors of the lower and upper legs (see Irreps.h) More...

void	update (TensorOperator previous, TensorT mps_tensor_up, TensorT mps_tensor_down, double workmem)
	Clear and update. More...

void	daxpy (double alpha, TensorOperator *to_add)
	daxpy for TensorOperator More...

void	daxpy_transpose_tensorCD (const double alpha, TensorOperator *to_add)
	daxpy_transpose for C- and D-tensors (with special spin-dependent factors) More...

void	clear ()
	Set all storage variables to 0.0.

double	inproduct (TensorOperator *buddy, const char trans) const
	Make the in-product of two TensorOperator. More...

Additional Inherited Members
Protected Member Functions inherited from CheMPS2::TensorOperator
void	update_moving_right (const int ikappa, TensorOperator previous, TensorT mps_tensor_up, TensorT mps_tensor_down, double workmem)
	Update moving right. More...

void	update_moving_left (const int ikappa, TensorOperator previous, TensorT mps_tensor_up, TensorT mps_tensor_down, double workmem)
	Update moving left. More...

Protected Attributes inherited from CheMPS2::TensorOperator
const SyBookkeeper *	bk_up
	The bookkeeper of the upper MPS.

const SyBookkeeper *	bk_down
	The bookkeeper of the lower MPS.

int	two_j
	Twice the spin of the tensor operator.

int	n_elec
	How many electrons there are more in the symmetry sector of the lower leg compared to the upper leg.

int	n_irrep
	The (real-valued abelian) point group irrep difference between the symmetry sectors of the lower and upper legs (see Irreps.h)

bool	moving_right
	Whether or not moving right.

int *	sector_nelec_up
	The up particle number sector.

int *	sector_irrep_up
	The up spin symmetry sector.

int *	sector_spin_up
	The up spin symmetry sector.

int *	sector_spin_down
	The down spin symmetry sector (pointer points to sectorTwoS1 if two_j == 0)

bool	prime_last
	Convention in which the tensor operator is stored (see class information)

bool	jw_phase
	Whether or not to include a Jordan-Wigner phase due to the fermion anti-commutation relations.

Protected Attributes inherited from CheMPS2::Tensor
int	index
	Index of the Tensor object. For TensorT: a site index; for other tensors: a boundary index.

double *	storage
	The actual variables. Tensor block kappa begins at storage+kappa2index[kappa] and ends at storage+kappa2index[kappa+1].

int	nKappa
	Number of Tensor blocks.

int *	kappa2index
	kappa2index[kappa] indicates the start of tensor block kappa in storage. kappa2index[nKappa] gives the size of storage.

Detailed Description

TensorKM class.

Author: Sebastian Wouters sebas.nosp@m.tian.nosp@m.woute.nosp@m.rs@g.nosp@m.mail..nosp@m.com

Date: August 9, 2014

The TensorKM class is a storage and manipulation class for a single contracted creator/annihilitor for the two-orbital mutual information. It only exists moving left to right.

Definition at line 34 of file TensorKM.h.

Constructor & Destructor Documentation

CheMPS2::TensorKM::TensorKM	(	const int	boundary_index,
		const char	identity,
		const int	Idiff,
		const SyBookkeeper *	denBK
	)

Constructor.

Parameters

boundary_index	The boundary index
identity	The identity: K, or M (capitals!)
Idiff	The irrep of the one creator ( sandwiched since TensorK )
denBK	The symmetry bookkeeper

Definition at line 25 of file TensorKM.cpp.

Member Function Documentation

void CheMPS2::TensorKM::construct ( TensorT * denT )

Parameters

denT	TensorT from which the new TensorKM should be made.

Definition at line 42 of file TensorKM.cpp.

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation