Pomerol::FieldOperatorContainer Class Reference

Container for instances of CreationOperator and AnnihilationOperator. More...

#include <FieldOperatorContainer.hpp>

Public Member Functions
template<typename... IndexTypes>
	FieldOperatorContainer (IndexClassification< IndexTypes... > const &IndexInfo, HilbertSpace< IndexTypes... > const &HS, StatesClassification const &S, Hamiltonian const &H, std::set< ParticleIndex > in={})
template<typename... IndexTypes>
void	prepareAll (HilbertSpace< IndexTypes... > const &HS)
void	computeAll (RealType Tolerance=1e-8)
CreationOperator const &	getCreationOperator (ParticleIndex in) const
AnnihilationOperator const &	getAnnihilationOperator (ParticleIndex in) const

Detailed Description

Container for instances of CreationOperator and AnnihilationOperator.

This container class stores instances of CreationOperator and AnnihilationOperator in associative maps with keys being their respective single-particle indices. It also provides methods that prepare and compute all stored MonomialOperator objects at once.

Definition at line 39 of file FieldOperatorContainer.hpp.

Constructor & Destructor Documentation

FieldOperatorContainer()

template<typename... IndexTypes>

Pomerol::FieldOperatorContainer::FieldOperatorContainer ( IndexClassification< IndexTypes... > const &  IndexInfo, HilbertSpace< IndexTypes... > const &  HS, StatesClassification const &  S, Hamiltonian const &  H, std::set< ParticleIndex >  in = {}  )

inline

Constructor.

Template Parameters

IndexTypes

Types of indices carried by the creation and annihilation operators.

Parameters

[in]	IndexInfo	Map for fermionic operator index tuples.
[in]	HS	Hilbert space.
[in]	S	Information about invariant subspaces of the Hamiltonian.
[in]	H	The Hamiltonian.
[in]	in	Set of all single-particle indices to store the MonomialOperator objects for. When empty, a set of all indices from IndexInfo is used.

Definition at line 56 of file FieldOperatorContainer.hpp.

Member Function Documentation

computeAll()

void Pomerol::FieldOperatorContainer::computeAll

(

RealType

Tolerance = 1e-8

)

Compute all stored creation and annihilation operators.

Parameters

[in]

Tolerance

Matrix elements with the absolute value equal or below this threshold are considered negligible.

Precondition

prepareAll() has been called.

getAnnihilationOperator()

AnnihilationOperator const& Pomerol::FieldOperatorContainer::getAnnihilationOperator

(

ParticleIndex

in

)

const

Return a reference to a annihilation operator by its single-particle index.

Parameters

[in]

in

Single-particle index.

getCreationOperator()

CreationOperator const& Pomerol::FieldOperatorContainer::getCreationOperator

(

ParticleIndex

in

)

const

Return a reference to a creation operator by its single-particle index.

Parameters

[in]

in

Single-particle index.

prepareAll()

template<typename... IndexTypes>

void Pomerol::FieldOperatorContainer::prepareAll ( HilbertSpace< IndexTypes... > const &  HS )

inline

Prepare all stored creation and annihilation operators (allocate memory for them).

Template Parameters

IndexTypes

Types of indices carried by the creation and annihilation operators.

Parameters

[in]

HS

Hilbert space.

Definition at line 75 of file FieldOperatorContainer.hpp.

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

• pomerol/FieldOperatorContainer.hpp