Tags for Cauchy Characteristic Extraction routines. More...

Classes
struct	AnalyticBoundaryDataManager
	A tag that constructs a `AnalyticBoundaryDataManager` from options. More...

struct	AnalyticInitializeJ

struct	BondiBeta
	Bondi parameter \(\beta\). More...

struct	BondiJ
	Bondi parameter \(J\). More...

struct	BondiJbar
	Bondi parameter \(\bar{J}\). More...

struct	BondiJCauchyView
	Bondi parameter \(\bar{J}\) in the Cauchy frame. More...

struct	BondiK
	Bondi parameter \(K = \sqrt{1 + J \bar{J}}\). More...

struct	BondiQ
	Bondi parameter \(Q\). More...

struct	BondiQbar
	Bondi parameter \(\bar{Q}\). More...

struct	BondiR
	The Bondi radius \(R(u, \theta, \phi)\) is of the worldtube. More...

struct	BondiU
	Bondi parameter \(U\). More...

struct	BondiUAtScri
	The surface quantity of Bondi \(U\) evaluated at the null spacetime boundary \(\mathcal I^+\). More...

struct	BondiUbar
	Bondi parameter \(\bar{U}\). More...

struct	BondiW
	Bondi parameter \(W\). More...

struct	BoundaryValue
	A prefix tag representing the boundary data for a quantity on the extraction surface. More...

struct	CauchyAngularCoords

struct	CauchyCartesianCoords

struct	CauchyGaugeC
	The spin-weight 2 angular Jacobian factor in the Cauchy coordinates, similar to Eq. (31a) of [134], but without hat. More...

struct	CauchyGaugeD
	The spin-weight 0 angular Jacobian factor in the Cauchy coordinates, similar to Eq. (31b) of [134], but without hat. More...

struct	CauchyGaugeOmega
	The conformal factor in the Cauchy coordinates, similar to Eq. (32) of [134], but without hat. More...

struct	CceEvolutionPrefix
	Tag for duplicating functionality of another tag, but allows creation from options in the Cce::Evolution option group. More...

struct	ComplexInertialRetardedTime
	Complex storage form for the asymptotically inertial retarded time, for taking spin-weighted derivatives. More...

struct	Dlambda
	The derivative with respect to \(\lambda\), where \(\lambda\) is an affine parameter along \(l\), see Eq. (19a) of [134]. More...

struct	Dr
	The derivative with respect to Bondi \(r\). More...

struct	Du
	The derivative with respect to Bondi retarded time \(u\). More...

struct	DuR
	A tag for the first time derivative of the worldtube parameter \(\partial_u R\), where \(R(u, \theta, \phi)\) is Bondi radius of the worldtube. More...

struct	DuRDividedByR
	The value \(\partial_u R / R\), where \(R(u, \theta, \phi)\) is Bondi radius of the worldtube. More...

struct	Dy
	The derivative with respect to the numerical coordinate \(y = 1 - 2R/r\), where \(R(u, \theta, \phi)\) is Bondi radius of the worldtube. More...

struct	EndTime

struct	EndTimeFromFile
	Represents the final time of a bounded CCE evolution, determined either from option specification or from the file. More...

struct	EthEthbarRDividedByR
	The value \(\eth \bar{\eth} R / R\), where \(R(u, \theta, \phi)\) is Bondi radius of the worldtube. More...

struct	EthEthRDividedByR
	The value \(\eth \eth R / R\), where \(R(u, \theta, \phi)\) is Bondi radius of the worldtube. More...

struct	EthInertialRetardedTime
	Represents \(\eth u_{\rm inertial}\), which is a useful quantity for asymptotic coordinate transformations. More...

struct	EthRDividedByR
	The value \(\eth R / R\), where \(R(u, \theta, \phi)\) is Bondi radius of the worldtube. More...

struct	EvolutionGaugeBoundaryValue
	A prefix tag representing the gauge-transformed boundary data for a quantity on the extraction surface. More...

struct	Exp2Beta
	The value \(\exp(2\beta)\). More...

struct	FilePrefix

struct	FilterLMax

struct	GhInterfaceManager

struct	H5WorldtubeBoundaryDataManager
	A tag that constructs a `MetricWorldtubeDataManager` or `BondiWorldtubeDataManager` from options. More...

struct	InertialRetardedTime
	The asymptotically inertial retarded time in terms of the evolution time variable. More...

struct	InitializeJ
	Tag for first-hypersurface initialization procedure specified by input options. More...

struct	InitializeJBase
	Base tag for first-hypersurface initialization procedure. More...

struct	Integrand
	A prefix tag representing a quantity that will appear on the right-hand side of an explicitly regular differential equation. More...

struct	InterpolationManager

struct	JbarQMinus2EthBeta
	The value \( \bar{J} (Q - 2 \eth \beta ) \). More...

struct	KleinGordonH5WorldtubeBoundaryDataManager
	A tag that constructs a `KleinGordonWorldtubeDataManager` from options. More...

struct	KleinGordonPsi

struct	KleinGordonSource
	A prefix tag representing Klein-Gordon sources in Cce hypersurface equations. More...

struct	LinearFactor
	A prefix tag representing a linear factor that acts on `Tag`. To determine the spin weight, It is assumed that the linear factor plays the role of \(L\) in an equation of the form, \( (y - 1) \partial_y H + L H + L^\prime \bar{H} = A + (1 - y) B \). More...

struct	LinearFactorForConjugate
	A prefix tag representing a linear factor that acts on `Tag`. To determine the spin weight, it is assumed that the linear factor plays the role of \(L^\prime\) in an equation of the form, \( (y - 1) \partial_y H + L H + L^\prime \bar{H} = A + (1 - y) B \). More...

struct	LMax

struct	News

struct	NoEndTime
	Represents the final time of a CCE evolution that should just proceed until it receives no more boundary data and becomes quiescent. More...

struct	NumberOfRadialPoints

struct	ObservationLMax

struct	OneMinusY
	Coordinate value \((1 - y)\), which will be cached and sent to the implementing functions. More...

struct	OutputNoninertialNews
	Represents whether the news should be provided at noninertial times. More...

struct	PartiallyFlatAngularCoords
	The angular coordinates for the partially flat Bondi-like coordinates. More...

struct	PartiallyFlatCartesianCoords
	The partially flat Bondi-like coordinates. More...

struct	PartiallyFlatGaugeC
	The spin-weight 2 angular Jacobian factor in the partially flat Bondi-like coordinates, see Eq. (31a) of [134]. More...

struct	PartiallyFlatGaugeD
	The spin-weight 0 angular Jacobian factor in the partially flat Bondi-like coordinates, see Eq. (31b) of [134]. More...

struct	PartiallyFlatGaugeOmega
	The conformal factor in the partially flat Bondi-like coordinates, associated with an angular transformation, see Eq. (32) of [134]. More...

struct	PoleOfIntegrand
	A prefix tag representing the coefficient of a pole part of the right-hand side of a singular differential equation. More...

struct	Psi0
	The Weyl scalar \(\Psi_0\). More...

struct	Psi0Match
	The Weyl scalar \(\Psi_0\) for matching (in the Cauchy frame) More...

struct	Psi1
	The Weyl scalar \(\Psi_1\). More...

struct	Psi2
	The Weyl scalar \(\Psi_2\). More...

struct	Psi3
	The Weyl scalar \(\Psi_3\). More...

struct	Psi4
	The Weyl scalar \(\Psi_4\). More...

struct	RadialFilterAlpha

struct	RadialFilterHalfPower

struct	RegularIntegrand
	A prefix tag representing the regular part of the right-hand side of a regular differential equation. More...

struct	ScriPlus
	A prefix tag representing the value at \(\mathcal I^+\). More...

struct	ScriPlusFactor
	A prefix tag representing an additional correction factor necessary to compute the quantity at \(\mathcal I^+\). More...

struct	SelfStartGhInterfaceManager
	During self-start, we must be in lockstep with the GH system (if running concurrently), because the step size is unchangable during self-start. More...

struct	SpecifiedEndTime
	Represents the final time of a bounded CCE evolution that must be supplied in the input file (for e.g. analytic tests). More...

struct	SpecifiedStartTime
	Represents the start time of a bounded CCE evolution that must be supplied in the input file (for e.g. analytic tests). More...

struct	StartTime

struct	StartTimeFromFile
	Represents the start time of a bounded CCE evolution, determined either from option specification or from the file. More...

struct	Strain
	The gravitational wave strain \(h\). More...

struct	TimeIntegral
	A prefix tag representing the time integral of the value it prefixes. More...

Typedefs
template<template< typename > class BoundaryPrefix>
using	characteristic_worldtube_boundary_tags = db::wrap_tags_in< BoundaryPrefix, tmpl::list< Tags::BondiBeta, Tags::BondiU, Tags::Dr< Tags::BondiU >, Tags::BondiQ, Tags::BondiW, Tags::BondiJ, Tags::Dr< Tags::BondiJ >, Tags::BondiH, Tags::Du< Tags::BondiJ >, Tags::BondiR, Tags::Du< Tags::BondiR >, Tags::DuRDividedByR > >
	The collection of tags mutated by `create_bondi_boundary_data`

using	klein_gordon_worldtube_boundary_tags = tmpl::list< Tags::BoundaryValue< Tags::KleinGordonPsi >, Tags::BoundaryValue< Tags::KleinGordonPi > >

using	BondiH = ::Tags::dt< BondiJ >
	Bondi parameter \(H = \partial_u J\). More...

using	KleinGordonPi = ::Tags::dt< KleinGordonPsi >
	Klein-Gordon variable \(\Pi = \partial_u \psi\).

Detailed Description

Tags for Cauchy Characteristic Extraction routines.

Typedef Documentation

◆ BondiH

using Cce::Tags::BondiH = typedef ::Tags::dt<BondiJ>

Bondi parameter \(H = \partial_u J\).

Note: The notation in the literature is not consistent regarding this quantity, or whether it is denoted by an \(H\) at all. The SpECTRE CCE module consistently uses it to describe the (retarded) partial time derivative of \(J\) at fixed compactified radius \(y\) (to be contrasted with the physical Bondi radius, which is not directly used for numerical grids).

Classes

Typedefs

Detailed Description

Typedef Documentation

◆ BondiH