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Forums
Physics
Beyond the Standard Models
Flat arena for quantum gravity?
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[QUOTE="haushofer, post: 6526831, member: 20128"] I'm giving an argument why I suspect that string theory in its current background dependent formulation is lacking, an argument pro background independence, and you start a rant about string theory. So yeah, you got me a bit puzzled here. And btw, I'm not a string theorist. But e.g. Fierz-Pauli theory shows how a bbackground dependent theory can become background independent by imposing the right principle. In my experience some critics of ST treat background dependency as some sort of disease. But the Fierz-Pauli example shows them wrong. Also, a background dependent formulation allows you to do scattering calculations, define propagators, show that Minkowski spacetime is a classical vacuum solution, etc. Things which, e.g. in LQG, afaik are much more difficult to obtain than in ST. So then an honest question is: how much should one value such a background independent formulation? Sorry for my bullshit, I won't bother you with it anymore. [/QUOTE]
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Flat arena for quantum gravity?
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