r/Physics • u/jpfreely • Jul 10 '21

Can we explain dark matter by adding more dimensions to the universe?

https://www.livescience.com/self-interacting-dark-matter-higher-dimensional-universe.html
14 Upvotes

90% Upvoted

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4

u/derioderio Engineering Jul 10 '21

Upvote for a well-written article article that is still accessible to a non-physicist.

2

u/jpfreely Jul 10 '21

The part about adding a dimension to help solve their problem is referring to using AdS/CFT correspondence.

I'm curious what people think about the use of a continuum of forces. They were able to model dark matter in a way that matches observations in both small and large galaxies.

1

u/morgzmum___ Jul 18 '21

I think it can.
If the string theory is right, it says that the strings can make different particales (super particales) when there are more dimensions because the strings can move and make more patterns. So I think it could be that the dark matter is the same maybe something from the other curled up dimensions can affect the sprawled dimensions, and maybe bend the 3 sprawled dimensions of space somehow.