All Questions
Tagged with adm-formalism quantum-gravity
5
questions
2
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0
answers
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Relation between the Wheeler–DeWitt equation and string theory
Can we derive the Wheeler–DeWitt equations from string theory? Since they are both quantum gravity theory.
A simple way seems to be the following logic:
The Wheeler–DeWitt equation is the canonically ...
- 547
3
votes
1
answer
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Spinfoams/LQG Inequivalence
I know up to some degree how spinfoam models and LQG work, but there are some details that i still miss since i have still a naif knowledge.
In the literature it as often said that an open problem is ...
- 1,611
4
votes
2
answers
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How to derive gravitational path integral from the Hamiltonian operator formalism?
How does one derive the gravitational path integral $\int [dg]\exp(iS_{\text{EH}}/\hbar)$ from the Hamiltonian operator formalism?
The connection between the Hamiltonian operator formalism and the ...
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7
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2
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Is Loop quantum gravity an unadulterated quantisation of general relativity, or does it have additional assumptions?
I was reading this Phys.SE answer written by user346. At the end of point 3, they say they've only made a change of canonical variables from the ADM formalism to get the Ashtekar formalism. Then point ...
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4
votes
1
answer
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ADM Hamiltonian formalism and Quantum gravity
Is there a Hamiltonian reformulation of gravity ? If so using the usual Quantization scheme we cannot quantize gravity ??
In terms of a Gauge Theory with the potential $A_{\mu}^{i}$ how can we get the ...
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