SpECTRE
v2024.12.16
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Computes the Klein-Gordon source of the Bondi \(H\). More...
#include <KleinGordonSource.hpp>
Public Types | |
using | return_tags = tmpl::list< Tags::KleinGordonSource< Tags::BondiH > > |
using | argument_tags = tmpl::list< Tags::Exp2Beta, Tags::BondiR, Spectral::Swsh::Tags::Derivative< Tags::KleinGordonPsi, Spectral::Swsh::Tags::Eth > > |
Static Public Member Functions | |
static void | apply (gsl::not_null< Scalar< SpinWeighted< ComplexDataVector, 2 > > * > kg_source_h, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &exp_2_beta, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &bondi_r, const Scalar< SpinWeighted< ComplexDataVector, 1 > > ð_kg_psi) |
Computes the Klein-Gordon source of the Bondi \(H\).
Following the nomenclature of [143] and their Eq. (50), the scalar field contributes only to the regular part of the source term \(S_3^R\). The expression reads:
\begin{align*} 2 \pi \frac{e^{2\beta}}{R}(\eth\psi)^2, \end{align*}
where \(\psi\) is the Klein-Gordon (scalar) field.