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SpECTRE
v2024.04.12
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The CCZ4 evolved variable \(\hat{\Gamma}^i\). More...
#include <Tags.hpp>
Public Types | |
| using | type = tnsr::I< DataType, Dim, Frame > |
The CCZ4 evolved variable \(\hat{\Gamma}^i\).
This must satisfy the identity:
\begin{align} \hat{\Gamma}^i &= \tilde{\Gamma}^i + 2 \tilde{\gamma}^{ij} Z_j \end{align}
where \(\tilde{\gamma}^{ij}\) is the inverse conformal spatial metric defined by Ccz4::Tags::InverseConformalMetric, \(Z_i\) is the spatial part of the Z4 constraint defined by Ccz4::Tags::SpatialZ4Constraint, and \(\tilde{\Gamma}^i\) is the contraction of the conformal spatial christoffel symbols of the second kind defined by Ccz4::Tags::ContractedConformalChristoffelSecondKind.