SpECTRE
v2024.09.29
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Assign the time derivative of the asymptotically inertial time coordinate. More...
#include <ScriPlusValues.hpp>
Public Types | |
using | return_tags = tmpl::list<::Tags::dt< Tags::InertialRetardedTime > > |
using | argument_tags = tmpl::list< Tags::Exp2Beta > |
Static Public Member Functions | |
static void | apply (gsl::not_null< Scalar< DataVector > * > dt_inertial_time, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &exp_2_beta) |
Assign the time derivative of the asymptotically inertial time coordinate.
The asymptotically inertial time coordinate \(\mathring u\) obeys the differential equation:
\begin{align*} \partial_u \mathring u = e^{2 \beta}. \end{align*}