Pomerol::GFContainer Class Reference

Container for instances of GreensFunction. More...

#include <GFContainer.hpp>

Inheritance diagram for Pomerol::GFContainer:

Collaboration diagram for Pomerol::GFContainer:

Public Member Functions
template<typename... IndexTypes>
	GFContainer (IndexClassification< IndexTypes... > const &IndexInfo, StatesClassification const &S, Hamiltonian const &H, DensityMatrix const &DM, FieldOperatorContainer const &Ops)
void	prepareAll (std::set< IndexCombination2 > const &Indices={})
void	computeAll ()
Public Member Functions inherited from Pomerol::IndexContainer2< GreensFunction, GFContainer >
	IndexContainer2 (GFContainer const &Source, IndexClassification< IndexTypes... > const &IndexInfo)
void	fill (std::set< IndexCombination2 > Indices=std::set< IndexCombination2 >())
GreensFunction &	create (IndexCombination2 const &Indices)
bool	isInContainer (IndexCombination2 const &Indices) const
bool	isInContainer (ParticleIndex Index1, ParticleIndex Index2) const
GreensFunction &	operator() (IndexCombination2 const &Indices)
GreensFunction &	operator() (ParticleIndex Index1, ParticleIndex Index2)
Public Member Functions inherited from Pomerol::Thermal
	Thermal (RealType beta)

Protected Member Functions
std::shared_ptr< GreensFunction >	createElement (IndexCombination2 const &Indices) const
Protected Member Functions inherited from Pomerol::IndexContainer2< GreensFunction, GFContainer >
std::set< IndexCombination2 >	enumerateIndices () const

Protected Attributes
StatesClassification const &	S
	Information about invariant subspaces of the Hamiltonian. More...
Hamiltonian const &	H
	The Hamiltonian. More...
DensityMatrix const &	DM
	Many-body density matrix \(\hat\rho\). More...
FieldOperatorContainer const &	Operators
	A set of creation/annihilation operators \(c^\dagger_j\)/ \(c_i\). More...
Protected Attributes inherited from Pomerol::IndexContainer2< GreensFunction, GFContainer >
ParticleIndex	NumIndices
	Each of the two indices can change in the range [0; NumIndices[. More...
std::map< IndexCombination2, std::shared_ptr< GreensFunction > >	ElementsMap
	Sparse storage for the elements. More...
GFContainer const &	Source
	Stored elements are created by calling Source.createElement(Indices). More...

Friends
class	IndexContainer2< GreensFunction, GFContainer >

Additional Inherited Members
Data Fields inherited from Pomerol::Thermal
const RealType	beta
	Inverse temperature \(\beta\). More...
const ComplexType	MatsubaraSpacing
	Spacing between (imaginary) Matsubara frequencies, \(i\pi/\beta\). More...

Detailed Description

Container for instances of GreensFunction.

This class stores elements of a matrix-valued fermionic single-particle Matsubara Green's function

\[ G_{ij}(i\omega_n) = -\int_0^\beta d\tau e^{i\omega_n\tau} Tr[\mathcal{T}_\tau \hat\rho c_i(\tau) c_j^\dagger(0)]. \]

Definition at line 44 of file GFContainer.hpp.

Constructor & Destructor Documentation

GFContainer()

template<typename... IndexTypes>

Pomerol::GFContainer::GFContainer ( IndexClassification< IndexTypes... > const &  IndexInfo, StatesClassification const &  S, Hamiltonian const &  H, DensityMatrix const &  DM, FieldOperatorContainer const &  Ops  )

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]	S	Information about invariant subspaces of the Hamiltonian.
[in]	H	The Hamiltonian.
[in]	DM	Many-body density matrix \(\hat\rho\).
[in]	Ops	A set of creation/annihilation operators \(c^\dagger_j\)/ \(c_i\).

Definition at line 55 of file GFContainer.hpp.

Member Function Documentation

computeAll()

void Pomerol::GFContainer::computeAll

(

)

Compute all prepared matrix elements \(G_{ij}\).

Precondition

prepareAll() has been called.

createElement()

std::shared_ptr<GreensFunction> Pomerol::GFContainer::createElement ( IndexCombination2 const &  Indices ) const

protected

Create a single matrix element \(G_{ij}\).

Parameters

[in]

Indices

Index combination \((i,j)\).

prepareAll()

void Pomerol::GFContainer::prepareAll

(

std::set< IndexCombination2 > const &

Indices = {}

)

Prepare a set of matrix elements \(G_{ij}\).

Parameters

[in]

Indices

Set of index combinations of the elements \(G_{ij}\) to be prepared. An empty set results in creation of elements for all possible index combinations.

Friends And Related Function Documentation

IndexContainer2< GreensFunction, GFContainer >

friend class IndexContainer2< GreensFunction, GFContainer >

friend

Definition at line 76 of file GFContainer.hpp.

Field Documentation

DM

DensityMatrix const& Pomerol::GFContainer::DM

protected

Many-body density matrix \(\hat\rho\).

Definition at line 88 of file GFContainer.hpp.

H

Hamiltonian const& Pomerol::GFContainer::H

protected

The Hamiltonian.

Definition at line 86 of file GFContainer.hpp.

Operators

FieldOperatorContainer const& Pomerol::GFContainer::Operators

protected

A set of creation/annihilation operators \(c^\dagger_j\)/ \(c_i\).

Definition at line 90 of file GFContainer.hpp.

S

StatesClassification const& Pomerol::GFContainer::S

protected

Information about invariant subspaces of the Hamiltonian.

Definition at line 83 of file GFContainer.hpp.

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

• pomerol/GFContainer.hpp