SpECTRE  v2026.04.01
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Cce::Tags::NewmanPenroseEpsilonCompute Struct Reference

Compute tag for \(\epsilon^{SW}\) in the volume. More...

#include <NewmanPenrose.hpp>

Public Types

using base = Tags::NewmanPenroseEpsilon
using return_type = typename base::type
using argument_tags
Public Types inherited from Cce::Tags::NewmanPenroseEpsilon
using type = Scalar<SpinWeighted<ComplexDataVector, 0>>

Static Public Attributes

static constexpr auto function

Detailed Description

Compute tag for \(\epsilon^{SW}\) in the volume.

Details

See documentation of newman_penrose_epsilon() for definition.

Member Typedef Documentation

◆ argument_tags

using Cce::Tags::NewmanPenroseEpsilonCompute::argument_tags
Initial value:
tmpl::list<Tags::BondiJ, Tags::Dy<Tags::BondiJ>,
Bondi parameter .
Definition Tags.hpp:88
The Bondi radius is of the worldtube.
Definition Tags.hpp:368
The derivative with respect to the numerical coordinate , where is Bondi radius of the worldtube.
Definition Tags.hpp:137
Coordinate value , which will be cached and sent to the implementing functions.
Definition Tags.hpp:316

Member Data Documentation

◆ function

auto Cce::Tags::NewmanPenroseEpsilonCompute::function
staticconstexpr
Initial value:
= static_cast<void (*)(
Require a pointer to not be a nullptr
Definition Gsl.hpp:197
Tensor< T, Symmetry<>, index_list<> > Scalar
Scalar type.
Definition TypeAliases.hpp:21
void newman_penrose_epsilon(gsl::not_null< Scalar< SpinWeighted< ComplexDataVector, 0 > > * > np_epsilon, const Scalar< SpinWeighted< ComplexDataVector, 2 > > &bondi_j, const Scalar< SpinWeighted< ComplexDataVector, 2 > > &dy_j, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &bondi_k, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &bondi_r, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &dy_beta, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &one_minus_y)
Compute the (adapted) Newman-Penrose spin coefficient in the volume, in the conventions of moxon2020...

The documentation for this struct was generated from the following file:
  • src/Evolution/Systems/Cce/NewmanPenrose.hpp