RealTimeTransport::IteratedRG::CurrentKernel Class Reference

#include <RealTimeTransport/IteratedRG/CurrentKernel.h>

Defines the current kernel computed via the renormalization group iteration.

Public Member Functions
	CurrentKernel () noexcept
	Constructor.
	CurrentKernel (CurrentKernel &&other) noexcept
	Move constructor.
	CurrentKernel (const CurrentKernel &other)
	Copy constructor.
CurrentKernel &	operator= (CurrentKernel &&other)
	Move assignment operator.
CurrentKernel &	operator= (const CurrentKernel &other)
	Copy assignment operator.
	CurrentKernel (const MemoryKernel &K, const Propagator &propagator, int r, Order order, SciCore::Real tMax, SciCore::Real errorGoal, int block=-1)
	Computes the current kernel for a given model.
	CurrentKernel (const MemoryKernel &K, const Propagator &propagator, int r, Order order, SciCore::Real tMax, SciCore::Real errorGoal, tf::Executor &executor, int block=-1)
	Computes the current kernel for a given model in parallel.
const Model *	model () const noexcept
	Returns a pointer to the model.
int	r () const noexcept
	Returns the reservoir index for which the current kernel was computed.
SciCore::Real	tMax () const
	Returns the maximum simulation time.
SciCore::Real	errorGoal () const noexcept
	Returns the error goal of the computation.
const Model::SuperRowVectorType &	SigmaInfty () const noexcept
	Returns \( -i \Sigma_{\infty} \), where \( \Sigma_{\infty} \) denotes the infinite temperature current kernel.
const SciCore::ChebAdaptive< Model::SuperRowVectorType > &	K () const noexcept
	Returns \( -i K \), where \( K \) denotes the current kernel.
Model::SuperRowVectorType	zeroFrequency () const
	Returns \(-i \Sigma_{\infty} -i K(0)\), where \(\Sigma_{\infty}\) denotes infinite temperature current kernel and \(K(0)\) the current kernel at zero frequency.
SciCore::Real	stationaryCurrent (const Model::OperatorType &stationaryState) const
	Returns the stationary current.

Constructor & Destructor Documentation

CurrentKernel() [1/2]

RealTimeTransport::IteratedRG::CurrentKernel::CurrentKernel	(	const MemoryKernel &	K,
		const Propagator &	propagator,
		int	r,
		Order	order,
		SciCore::Real	tMax,
		SciCore::Real	errorGoal,
		int	block = -1 )

Computes the current kernel for a given model using the renormalization group iteration.

Parameters

K	The memory kernel for the model.
propagator	The propagator for the model.
r	Index of the reservoir \( r=0,1,\dots \)
order	The loop-order of the renormalization group iteration.
tMax	Maximum time until the current kernel is resolved.
errorGoal	Error goal of the current kernel computation.
block	Computes the complete current kernel if block==-1, otherwise computes only a single block with index block.

CurrentKernel() [2/2]

RealTimeTransport::IteratedRG::CurrentKernel::CurrentKernel	(	const MemoryKernel &	K,
		const Propagator &	propagator,
		int	r,
		Order	order,
		SciCore::Real	tMax,
		SciCore::Real	errorGoal,
		tf::Executor &	executor,
		int	block = -1 )

Computes the current kernel for a given model using the renormalization group iteration in parallel.

Parameters

K	The memory kernel for the model.
propagator	The propagator for the model.
r	Index of the reservoir \( r=0,1,\dots \)
order	The loop-order of the renormalization group iteration.
tMax	Maximum time until the current kernel is resolved.
errorGoal	Error goal of the current kernel computation.
executor	An excecutor managing multiple threads.
block	Computes the complete current kernel if block==-1, otherwise computes only a single block with index block.