SpECTRE
v2024.09.29
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Computes the Klein-Gordon source of the Bondi \(\beta\). More...
#include <KleinGordonSource.hpp>
Public Types | |
using | return_tags = tmpl::list< Tags::KleinGordonSource< Tags::BondiBeta > > |
using | argument_tags = tmpl::list< Tags::Dy< Tags::KleinGordonPsi >, Tags::OneMinusY > |
Static Public Member Functions | |
static void | apply (gsl::not_null< Scalar< SpinWeighted< ComplexDataVector, 0 > > * > kg_source_beta, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &dy_kg_psi, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &one_minus_y) |
Computes the Klein-Gordon source of the Bondi \(\beta\).
The source reads:
\begin{align*} 2 \pi (1-y) (\partial_y\psi)^2, \end{align*}
where \(\psi\) is the Klein-Gordon (scalar) field.