Quote:
Originally Posted by sjastro
The infinities don't crop up by changing the nature of the gravitational constant at different scales. It's a "subtle" form of renormalization unlike for example the brutal chopping out of divergent terms that describe the energy of a vacuum so it does not become infinite.
It's a renormalizable theory of gravity, unlike previous attempts to combine gravity and the other forces where it was not possible to renormalize.
An interesting paper, it requires a considerable knowledge of QFT to understand it. I'm still sifting through it.
Steven
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I haven't read the paper, so that's why I asked that question. Whether there were infinities cropping up. So, it's just a subtle readjustment of a few of the parameters and not some attempt to try and "hide" mathematical embarrassments that turn up in equations sometimes.