- Summary
- Is Wheeler-DeWitt equation somehow related to any kind of Multiverse idea/model?

I've seen some articles that relate them (like this one: https://arxiv.org/pdf/1407.3118.pdf)

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I've also seen that this equation is very used in quantum cosmology, which involves sometime the consideration of multiple universes.

Also, Hartle-Hawking state is closely related to multiverse models, and this has been shown to satisfy, approximately, the Wheeler-DeWitt equation...

But, did John Wheeler or Bryce DeWitt relate this equation to some kind of multiverse model? Is this equation related to some kind of multiverse model?

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*In this paper we will analyze the third quantization of gravity in path integral formalism.*"**We will use the time-dependent version of WheelerDeWitt equation to analyze the multiverse**in this formalism.I've also seen that this equation is very used in quantum cosmology, which involves sometime the consideration of multiple universes.

Also, Hartle-Hawking state is closely related to multiverse models, and this has been shown to satisfy, approximately, the Wheeler-DeWitt equation...

But, did John Wheeler or Bryce DeWitt relate this equation to some kind of multiverse model? Is this equation related to some kind of multiverse model?