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dsaun777
- 296
- 39
The energy momentum tensor and its correlation to reimannian curvature is fascinating to think about. How much are the components and which of the components are taken into consideration when doing real physics. I suppose astrophysicists and cosmologists would be the main group of scientists that use such calculations routinely. When or how are they actually used experimentally to verify and make predictions? I am aware that the dominant figure in the energy tensor is density, but are factors like stress, flux etc key figures in doing real cosmology? Or are they more for computing black hole or galactic scale type curvatures.