- #1
rogerl
- 238
- 2
Which of the following is the most promising road to quantum gravity?
1. quantising General Relativity
2. quantising a different classical theory, while still having
general relativity emerge as a low-energy (large-distance) limit.
3. having general relativity emerge as a low-energy limit
of a quantum theory that is not a quantization of a classical
theory
4. having both general relativity and quantum theory emerge
from a theory very different from both
By the way. Is the problem of Quantum Gravity the same as the question
of how quantum matter got coupled to Spacetime even on macroscopic
scale or are the 2 concepts distinct such that Quantum Gravity deals
only with the quantization of gravity?
1. quantising General Relativity
2. quantising a different classical theory, while still having
general relativity emerge as a low-energy (large-distance) limit.
3. having general relativity emerge as a low-energy limit
of a quantum theory that is not a quantization of a classical
theory
4. having both general relativity and quantum theory emerge
from a theory very different from both
By the way. Is the problem of Quantum Gravity the same as the question
of how quantum matter got coupled to Spacetime even on macroscopic
scale or are the 2 concepts distinct such that Quantum Gravity deals
only with the quantization of gravity?