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gh::Tags::Pi< DataType, Dim, Frame > Struct Template Reference

Conjugate momentum to the spacetime metric. More...

#include <Tags.hpp>

Public Types

using type = tnsr::aa< DataType, Dim, Frame >
 

Detailed Description

template<typename DataType, size_t Dim, typename Frame>
struct gh::Tags::Pi< DataType, Dim, Frame >

Conjugate momentum to the spacetime metric.

Details

If ψab is the spacetime metric, and N and Ni are the lapse and shift respectively, then we define Πab=1N(tψab+NiΦiab) where Φiab is the variable defined by the tag Phi.


The documentation for this struct was generated from the following file: