what are WIMPS in relation to the inflation theory of the universe and what ... (question continued below)?

Question

is hyperdimensional theory of the universe and what is the bubble theory of the universe?

Answer 1

WIMPS are "Weakly Interacting Massive Particles", which are hypothetical particles that have been invoked to solve the "dark matter" problem. (Astronomical observations of things like the rotational speed of galaxies, and the interactions of galaxies in clusters can be explained if there is some form of matter, called "dark matter", that does not absorb or emit electromagnetic radiation, and thus cannot be detected by normal astronomical observations).

WIMPS would only interact with other particles (and each other) via the weak and gravitational forces. They would therefore be very hard to detect. Because no one has yet detected them, and there are are not predicted by the "standard model" of particle physics, they remain simply an interesting conjecture.

WIMPS are supposed to have large masses, and clumps of them could act as "gravitational nuclei" for the formation of galaxies in the early universe. I do not know of any other connection between WIMPS and the inflationary scenario for the early universe.

The bubble theory of the universe is a variant on the currently favored inflationary theory for the early universe. In this theory, instead of a single point expanding at a single time to form a single universe (ours) that constitutes all of physical reality, different portions of physical reality "decay" to form independent universes at differing times. Physical reality would therefore correspond to a "foam" of independent universes, each of which is completely isolated from one another.

I've never heard of the "hyperdimensional theory of the universe".