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Plankton
09.12.17, 16:43
https://motherboard.vice.com/de/article/kb7my9/physikern-gelingt-es-zum-ersten-mal-eine-fuenfte-dimension-zu-simulieren-634

https://phys.org/news/2016-02-five-dimensional-black-hole-relativity.html

Einstein's theory itself does not state how many dimensions there are in the universe, so theoretical physicists have been studying general relativity in higher dimensions to see if cosmic censorship still holds. The discovery of ring-shaped black holes in five dimensions led researchers to hypothesise that they could break up and give rise to a naked singularity.

What the Cambridge researchers, along with their co-author Pau Figueras from Queen Mary University of London, have found is that if the ring is thin enough, it can lead to the formation of naked singularities.
Using the COSMOS supercomputer, the researchers were able to perform a full simulation of Einstein's complete theory in higher dimensions, allowing them to not only confirm that these 'black rings' are unstable, but to also identify their eventual fate. Most of the time, a black ring collapses back into a sphere, so that the singularity would stay contained within the event horizon. Only a very thin black ring becomes sufficiently unstable as to form bulges connected by thinner and thinner strings, eventually breaking off and forming a naked singularity. New simulation techniques and computer code were required to handle these extreme shapes.
"The better we get at simulating Einstein's theory of gravity in higher dimensions, the easier it will be for us to help with advancing new computational techniques - we're pushing the limits of what you can do on a computer when it comes to Einstein's theory," said Tunyasuvunakool.

"But if cosmic censorship doesn't hold in higher dimensions, then maybe we need to look at what's so special about a four-dimensional universe that means it does hold."
[...]

- faszinerend zu was Computer fähig sind
- spannende Zukunft! Ist die ART irgendwann nur noch gültig in 4 Dimensionen und ein Grenzfall in Theorien mit mehr Dimensionen?