I found this write up by Sean Carroll that provides a better picture (for me at least) about what the two papers are describing:
http://www.preposterousuniverse.com/blog/2011/05/26/are-many-worlds-and-the-multiverse-the-same-idea/ Jason On Wed, Jun 13, 2018 at 6:30 PM, Jason Resch <[email protected]> wrote: > > Physical Theories, Eternal Inflation, and Quantum Universe > <https://arxiv.org/abs/1104.2324>, Yasunori Nomura > > We conclude that the eternally inflating multiverse and many worlds in > quantum mechanics are the same. Other important implications include: > global spacetime > can be viewed as a derived concept; the multiverse is a transient > phenomenon during the > world relaxing into a supersymmetric Minkowski state. We also present a > theory of “initial > conditions” for the multiverse. By extrapolating our framework to the > extreme, we arrive at a > picture that the entire multiverse is a fluctuation in the stationary, > fractal “mega-multiverse,” > in which an infinite sequence of multiverse productions occurs. > > "Therefore, we conclude that the multiverse is the same as (or a specific > manifestation > of ) many worlds in quantum mechanics." > > "In eternal inflation, however, one first picks a causal patch; then one > looks for observers in it.” Our framework does not follow this approach. We > instead pick an observer first, and then construct the relevant spacetime > regions associated with it. > > Instead of admitting the existence of the “beginning,” we may require that > the quantum observer principle is respected for the whole history of > spacetime. In this case, the beginning of our multiverse is a fluctuation > of a larger structure, whose beginning is also a fluctuation of an even > larger structure, and this series goes on forever. This leads to the > picture that our multiverse arises as a fluctuation in a huge, stationary > “megamultiverse,” which has a fractal structure." > > > The Multiverse Interpretation of Quantum Mechanics > <https://arxiv.org/abs/1105.3796>, Raphael Bousso and Leonard Susskind > > In both the many-worlds interpretation of quantum mechanics and the > multiverse > of eternal inflation the world is viewed as an unbounded collection of > parallel universes. > A view that has been expressed in the past by both of us is that there is > no need to > add an additional layer of parallelism to the multiverse in order to > interpret quantum > mechanics. To put it succinctly, the many-worlds and the multiverse are > the same > thing [1]. > > > Jason > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
