exatn::numerics::TensorOperator Class Reference

Classes
struct	OperatorComponent

Public Types
using	Iterator = typename std::vector< OperatorComponent >::iterator
using	ConstIterator = typename std::vector< OperatorComponent >::const_iterator

Public Member Functions
	TensorOperator (const std::string &name)
	TensorOperator (const TensorOperator &)=default
TensorOperator &	operator= (const TensorOperator &)=default
	TensorOperator (TensorOperator &&) noexcept=default
TensorOperator &	operator= (TensorOperator &&) noexcept=default
Iterator	begin ()
Iterator	end ()
ConstIterator	cbegin () const
ConstIterator	cend () const
const std::string &	getName () const
int	getRank () const
std::size_t	getNumComponents () const
const OperatorComponent &	getComponent (std::size_t component_num)
bool	appendComponent (std::shared_ptr< TensorNetwork > network, const std::vector< std::pair< unsigned int, unsigned int >> &ket_pairing, const std::vector< std::pair< unsigned int, unsigned int >> &bra_pairing, const std::complex< double > coefficient)
void	conjugate ()
void	printIt () const

Protected Attributes
std::string	name_
std::vector< OperatorComponent >	components_

Member Function Documentation

appendComponent()

bool exatn::numerics::TensorOperator::appendComponent	(	std::shared_ptr< TensorNetwork >	network,
		const std::vector< std::pair< unsigned int, unsigned int >> &	ket_pairing,
		const std::vector< std::pair< unsigned int, unsigned int >> &	bra_pairing,
		const std::complex< double >	coefficient
	)

Appends a new component to the tensor operator linear expansion. The new component can either be a tensor network or just a single tensor expressed as a tensor network of size 1. The ket and bra pairing arguments specify which legs of the network output tensor act on a ket vector and which on a bra vector, together with their mapping onto the global modes of the tensor space the tensor operator is supposed to act upon.

conjugate()

void exatn::numerics::TensorOperator::conjugate

(

)

Conjugates the tensor operator: All constituting tensors are complex conjugated, all tensor legs reverse their direction, bra legs and ket legs are swapped, complex linear expansion coefficients are complex conjugated.

getComponent()

const OperatorComponent& exatn::numerics::TensorOperator::getComponent ( std::size_t  component_num )

inline

Returns a specific component of the tensor operator.

getName()

const std::string& exatn::numerics::TensorOperator::getName ( ) const

inline

Returns the name of the tensor network operator.

getNumComponents()

std::size_t exatn::numerics::TensorOperator::getNumComponents ( ) const

inline

Returns the total number of components in the tensor operator.

getRank()

int exatn::numerics::TensorOperator::getRank ( ) const

inline

Returns the rank of the tensor operator (number of legs per component). If the expansion is empty, returns -1.

printIt()

void exatn::numerics::TensorOperator::printIt

(

)

const

Prints.

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

• /Users/aqw/exatn/src/numerics/tensor_operator.hpp
• /Users/aqw/exatn/src/numerics/tensor_operator.cpp