Pomerol::EnsembleAverage Class Reference

Canonical ensemble average of a monomial operator. More...

#include <EnsembleAverage.hpp>

Inheritance diagram for Pomerol::EnsembleAverage:

Collaboration diagram for Pomerol::EnsembleAverage:

Public Member Functions
	EnsembleAverage (MonomialOperator const &A, DensityMatrix const &DM)
	EnsembleAverage (EnsembleAverage const &EA)
void	compute ()
	Compute the ensemble average of \(\hat A\). More...
ComplexType	operator() () const
	Return the ensemble average. More...
Public Member Functions inherited from Pomerol::Thermal
	Thermal (RealType beta)
Public Member Functions inherited from Pomerol::ComputableObject
	ComputableObject ()=default
StatusEnum	getStatus () const
	Return the current computation status. More...
void	setStatus (StatusEnum Status_in)

Additional Inherited Members
Public Types inherited from Pomerol::ComputableObject
enum	StatusEnum { Constructed , Prepared , Computed }
	Computation status of the object. More...
Data Fields inherited from Pomerol::Thermal
RealType const	beta
	Inverse temperature \(\beta\). More...
ComplexType const	MatsubaraSpacing
	Spacing between (imaginary) Matsubara frequencies, \(i\pi/\beta\). More...
Protected Attributes inherited from Pomerol::ComputableObject
StatusEnum	Status = Constructed
	Current computation status. More...

Detailed Description

Canonical ensemble average of a monomial operator.

This class represents the ensemble average of a monomial operator \(\hat A\),

\[ \langle A \rangle = Tr[\hat\rho \hat A]. \]

Usage example:

EnsembleAverage EA(A /* Monomial operator */, DM /* Density matrix */);
 
EA.prepare();
auto average = EA();

Definition at line 47 of file EnsembleAverage.hpp.

Constructor & Destructor Documentation

EnsembleAverage() [1/2]

Pomerol::EnsembleAverage::EnsembleAverage	(	MonomialOperator const &	A,
		DensityMatrix const &	DM
	)

Constructor.

Parameters

[in]	A	Monomial operator \(\hat A\).
[in]	DM	Many-body density matrix \(\hat\rho\).

EnsembleAverage() [2/2]

Pomerol::EnsembleAverage::EnsembleAverage

(

EnsembleAverage const &

EA

)

Copy-constructor.

Parameters

[in]

EA

EnsembleAverage object to be copied.

Member Function Documentation

compute()

void Pomerol::EnsembleAverage::compute

(

)

Compute the ensemble average of \(\hat A\).

operator()()

ComplexType Pomerol::EnsembleAverage::operator() ( ) const

inline

Return the ensemble average.

Definition at line 73 of file EnsembleAverage.hpp.

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

• pomerol/EnsembleAverage.hpp