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Results tagged with quantum-gravity
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user 106061
Any of the various explanations of gravity as a quantum theory, including string theory and loop quantum gravity.
5
votes
2
answers
694
views
How do people go about looking for asymptotic safety in quantum gravity?
Do we have (proposed?) methods to look for fixed points in the renormalization group flow of the Einstein-Hilbert action? My understanding of the RG is still somewhat sketchy at this point and I am ha …
- 784
2
votes
How do we choose how to discretise spacetime in loop quantum gravity?
In LQG we often talk about how space takes on a discrete character, but the truth is somewhat more subtle. Space in LQG is not a lattice, but the sum over all lattices which respect our boundary condi …
- 784
7
votes
Accepted
What is the problem with quantizing GR in the Effective Field Theory approach?
There is nothing wrong with effective quantum general relativity as a QFT. It works fine and we can get effective answers for calculations. That said, most are not interested in calculating scattering …
- 784