[Users] Thorn for coupled equations

Nick Olsen n.olsen.3.711 at gmail.com
Mon Feb 7 11:50:04 CST 2022


Hello everyone

I have been trying to write a thorn to couple the Klein-Gordon equations to
the 3+1 Einstein equations. I can't figure out the details on how to make
the thorn tell the ET how to update T_munu according to the evolution
equations. I've been trying to write the thorn with Kranc without much
luck, as Kranc isn't telling me anything when it does fail. I have attached
the .m of the attempted thorn here. If anyone has any input or suggestions
it would be greatly appreciated.

Nicholas Olsen
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