qpe::QuantumBackflow2D Class Reference

Implements the Quantum Backflow2D component. More...

#include <quantumbackflow2d.h>

Static Public Member Functions
static bool	validateConfig (const QuantumBackflow2DConfig &config, std::string *reason=nullptr) noexcept
	Validates config.
static bool	prepareState (ComplexField2D &field, const QuantumBackflow2DConfig &config, double hbar, std::string *reason=nullptr)
	Prepares state.
static double	positiveMomentumFraction (const ComplexField2D &field) noexcept
	Performs positive momentum fraction.
static QuantumBackflowSample2D	measure (const ComplexField2D &field, const QuantumBackflow2DConfig &config, double mass, double hbar, double time) noexcept
	Performs measure.

Detailed Description

Implements the Quantum Backflow2D component.

The class provides one focused service within the QPE architecture and is documented here independently of the experiment-level Help.

Definition at line 60 of file quantumbackflow2d.h.

Member Function Documentation

measure()

QuantumBackflowSample2D qpe::QuantumBackflow2D::measure ( const ComplexField2D & field, const QuantumBackflow2DConfig & config, double mass, double hbar, double time )

staticnoexcept

Performs measure.

Parameters

field	Field data to read or modify.
config	Configuration to apply.
mass	The mass value used by the operation.
hbar	The hbar value used by the operation.
time	Simulation time in solver units.

Definition at line 167 of file quantumbackflow2d.cpp.

References qpe::QuantumBackflowSample2D::detectorCurrent, qpe::QuantumBackflowSample2D::probabilityLeft, qpe::QuantumBackflowSample2D::probabilityRight, and qpe::QuantumBackflowSample2D::time.

Referenced by qpe::QuantumBackflowHistory2D::append().

positiveMomentumFraction()

double qpe::QuantumBackflow2D::positiveMomentumFraction ( const ComplexField2D & field )

staticnoexcept

Performs positive momentum fraction.

Parameters

field

Field data to read or modify.

Definition at line 145 of file quantumbackflow2d.cpp.

References qpe::FFT2D::forward(), and qpe::FFT2D::supportsSize().

Referenced by qpe::QuantumBackflowHistory2D::configure(), and qpe::tests::runQuantumBackflow2DTests().

prepareState()

bool qpe::QuantumBackflow2D::prepareState ( ComplexField2D & field, const QuantumBackflow2DConfig & config, double hbar, std::string * reason = nullptr )

static

Prepares state.

Parameters

field	Field data to read or modify.
config	Configuration to apply.
hbar	The hbar value used by the operation.
reason	The reason value used by the operation.

Definition at line 93 of file quantumbackflow2d.cpp.

References qpe::ComplexField2D::dx(), qpe::ComplexField2D::dy(), qpe::ComplexField2D::empty(), qpe::QuantumBackflow2DConfig::fastAmplitudeRatio, qpe::QuantumBackflow2DConfig::fastWaveNumber, qpe::ComplexField2D::fill(), qpe::ComplexField2D::height(), qpe::QuantumBackflow2DConfig::initialCenterX, qpe::FFT2D::inverse(), qpe::QuantumBackflow2DConfig::momentumSigma, qpe::ComplexField2D::normalize(), qpe::QuantumBackflow2DConfig::relativePhaseDegrees, qpe::QuantumBackflow2DConfig::slowWaveNumber, qpe::FFT2D::supportsSize(), qpe::QuantumBackflow2DConfig::transverseSigma, validateConfig(), and qpe::ComplexField2D::width().

Referenced by MainWindow::prepareConfiguredInitialState(), and qpe::tests::runQuantumBackflow2DTests().

validateConfig()

bool qpe::QuantumBackflow2D::validateConfig ( const QuantumBackflow2DConfig & config, std::string * reason = nullptr )

staticnoexcept

Validates config.

Parameters

config	Configuration to apply.
reason	The reason value used by the operation.

Definition at line 72 of file quantumbackflow2d.cpp.

Referenced by qpe::QuantumBackflowHistory2D::configure(), prepareState(), and qpe::anonymous_namespace{experimentdocument2d.cpp}::quantumBackflowFromJson().

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

• core/quantum/quantumbackflow2d.h
• core/quantum/quantumbackflow2d.cpp