gr::surfaces::Tags Namespace Reference

Holds tags and ComputeItems associated with a ylm::Strahlkorper that also need a metric. More...

Classes
struct	Area
	Tag representing the surface area of a Strahlkorper. More...
struct	AreaCompute
	Computes the surface area of a Strahlkorer, \(A = \oint_S dA\) given an AreaElement \(dA\) and a Strahlkorper \(S\). More...
struct	AreaElement
	Computes the area element on a Strahlkorper. Useful for integrals. More...
struct	AreaElementCompute
struct	ChristodoulouMass
	The Christodoulou mass, which is a function of the dimensionful spin angular momentum and the irreducible mass of a Strahlkorper. More...
struct	ChristodoulouMassCompute
	Computes the Christodoulou mass from the dimensionful spin angular momentum and the irreducible mass of a Strahlkorper. More...
struct	DimensionfulSpinMagnitude
	The approximate-Killing-Vector quasilocal spin magnitude of a Strahlkorper (see Sec. 2.2 of [25] and references therein). More...
struct	DimensionfulSpinMagnitudeCompute
	Computes the approximate-Killing-Vector quasilocal spin magnitude of a Strahlkorper. More...
struct	DimensionfulSpinVector
	The dimensionful spin angular momentum vector. More...
struct	DimensionfulSpinVectorCompute
	Computes the dimensionful spin angular momentum vector. More...
struct	DimensionlessSpinMagnitude
	The dimensionless spin magnitude of a Strahlkorper. More...
struct	DimensionlessSpinMagnitudeCompute
	Computes the dimensionless spin magnitude \(\chi = \frac{S}{M^2}\) from the dimensionful spin magnitude \(S\) and the christodoulou mass \(M\) of a black hole. More...
struct	ExtrinsicCurvatureCompute
struct	InverseSpatialMetricCompute
	These ComputeItems are different from those used in GeneralizedHarmonic evolution because these live only on the intrp::Actions::ApparentHorizon DataBox, not in the volume DataBox. And these ComputeItems can do fewer allocations than the volume ones, because (for example) Lapse, SpaceTimeNormalVector, etc. can be inlined instead of being allocated as a separate ComputeItem. More...
struct	IrreducibleMass
	The Irreducible (areal) mass of an apparent horizon. More...
struct	IrreducibleMassCompute
	Computes the Irreducible mass of an apparent horizon from its area. More...
struct	SpatialChristoffelSecondKindCompute
struct	SpinFunction
	The spin function is proportional to the imaginary part of the Strahlkorper’s complex scalar curvature. More...
struct	SpinFunctionCompute
	Calculates the spin function which is proportional to the imaginary part of the Strahlkorper’s complex scalar curvature. More...
struct	SurfaceIntegral
	Computes the integral of a scalar over a Strahlkorper. More...
struct	SurfaceIntegralCompute

Detailed Description

Holds tags and ComputeItems associated with a ylm::Strahlkorper that also need a metric.