The volume of the haystack
Lubos Motl:
We don't have a real emotional intuition how "density" in a very-high-dimensional space should behave, but we should probably try to learn it. I feel that these (especially the de Sitter) vacua cannot be quite isolated. There are just many other vacua nearby (virtually all of them) into which one should be able to decay. KKLT only consider one Coleman-DeLuccia instanton, without an enhancement, and I feel it can't be the whole story
The Coleman-De Luccia instanton presents opportunities, or, is the paper countering this proposal? See link below for reference to paper.
I think one needed to understand this movement or how the false vacuum is understood, and how the true vacuum is created.
A geometical smoothly flowing understanding that arose out of "nothing!" Without some geometrical consistancy, this idea isn't going to go away, unless someone has a reason why, and if, that paper deals with it directly?
I remain non-judgemental about characters, and the nature people adopt. I only focus on those issues that would offer us some further ideas to exploit. To help us all push pespectve forward. While there is a facade in what the mind accumulates as the image of who we are, there is "kernels of truth" that we must seek to reference, so the knowledge base can increase, and intuitve leaps for the taking by who ever push persepctove add experimetal basis as a concluding result.
We'll leave the dance and facades for other to design themself. We always want them to be "whole" with what ever they have accepted in life.
Peter Woit recommends supersymmetry
Lubos Motl:
At any rate, quantum black holes do carry quantum information, the relevant entropy is, at least in some cases, attributable to the entanglement entropy, and the research of quantum entanglement in this context could turn out to be very fruitful which is why many of us should look at these "coincidences" more carefully. They may very well clarify the origin and mathematical details of the black hole complementarity
The circumstance around the nature of the state where such superfluids are created, needed some method in which to move, from "one state into another"(turned inside/out)?
If you hold the nature of the bubble universe and it's formation in mind, it does not seem so unlikely that you had the klein bottle, as some geometrical basis from which the false vacuum would direct itself into inflationary results?
So is the paper discounting the basis of the views of Coleman-De Luccia instanton?
The idea behind the Coleman-De Luccia instanton, discovered in 1987, is that the matter in the early universe is initially in a state known as a false vacuum. A false vacuum is a classically stable excited state which is quantum mechanically unstable. In the quantum theory, matter which is in a false vacuum may `tunnel' to its true vacuum state. The quantum tunnelling of the matter in the early universe was described by Coleman and De Luccia. They showed that false vacuum decay proceeds via the nucleation of bubbles in the false vacuum. Inside each bubble the matter has tunnelled. Surprisingly, the interior of such a bubble is an infinite open universe in which inflation may occur. The cosmological instanton describing the creation of an open universe via this bubble nucleation is known as a Coleman-De Luccia instanton.
Okay so we are talking about cosmological proportions here, in blackhole creation and the resulting standard model and interactions developed from the origins of this universe. Is it consistent all the way down to the planck epoch, and how would the planck epoch be described?
One would need to see the geometrical basis of what is hapening from one state to the next. Our universe into some other new expression, or blackhole states, that rejuvenize, using geometrical dynamics of what is already existing?
Would this run contrary to the arrow of time, by having such states within context of the whole universe? Would this not explain the susutenance need to keep the universe in the same state for a very long long time?
Backreaction
Do a search, under the heading of "backreaction in laval nozzle," for further references.
Black Holes and Analogues in Two Dimensions
Examples: acoustics in a moving fluid (“dumbholes”), BEC, Helium, slow light,
See: