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MTd2
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Sabine Hossenfelder said...
Arun: This has never been proved. These deformations are problematic for other reasons, but they don't suffer from the density problem that I alluded to here, if that is what you mean, yes. LQG itself isn't actually based on a space-time network so the argument doesn't apply to it either. The recovery of Lorentz-invariance in LQG though is to my knowledge an unsolved problem.
B.
http://backreaction.blogspot.com.br/2015/04/the-problem-with-poincare-invariant.html
Arun: This has never been proved. These deformations are problematic for other reasons, but they don't suffer from the density problem that I alluded to here, if that is what you mean, yes. LQG itself isn't actually based on a space-time network so the argument doesn't apply to it either. The recovery of Lorentz-invariance in LQG though is to my knowledge an unsolved problem.
B.
http://backreaction.blogspot.com.br/2015/04/the-problem-with-poincare-invariant.html