micho :3
A 40-year-old puzzle of superstring theory solved by supercomputer
A group of three researchers from KEK, Shizuoka University and Osaka University has for the first time revealed the way our universe was born with 3 spatial dimensions from 10-dimensional superstring theory in which spacetime has 9 spatial directions and 1 temporal direction. This result was obtained by numerical simulation on a supercomputer.
“According to Big Bang cosmology, the universe originated in an explosion from an invisibly tiny point. This theory is strongly supported by observation of the cosmic microwave background and the relative abundance of elements. However, a situation in which the whole universe is a tiny point exceeds the reach of Einstein’s general theory of relativity, and for that reason it has not been possible to clarify how the universe actually originated.
In superstring theory, which is considered to be the “theory of everything”, all the elementary particles are represented as various oscillation modes of very tiny strings. Among those oscillation modes, there is one that corresponds to a particle that mediates gravity, and thus the general theory of relativity can be naturally extended to the scale of elementary particles. Therefore, it is expected that superstring theory allows the investigation of the birth of the universe. However, actual calculation has been intractable because the interaction between strings is strong, so all investigation thus far has been restricted to discussing various models or scenarios.
Superstring theory predicts a space with 9 dimensions, which poses the big puzzle of how this can be consistent with the 3-dimensional space that we live in.
A group of 3 researchers, Jun Nishimura (associate professor at KEK), Asato Tsuchiya (associate professor at Shizuoka University) and Sang-Woo Kim (project researcher at Osaka University) has succeeded in simulating the birth of the universe, using a supercomputer for calculations based on superstring theory. This showed that the universe had 9 spatial dimensions at the beginning, but only 3 of these underwent expansion at some point in time…”
Interior dome tile work in the Imam’s Mosque, formerly the Shah’s Mosque (Masjed-i Shah) before the 1979 Revolution, in Naqsh-i Jahan Square, Isfahan. Built 1611-1629 by Shah Abbas I.
via sms.
Oscar: I had a good christmas indeed. I think I will be spontaneous for once. Let us see where I end up.
Me: Ok. The bottom of wells and other deep and dark places are not very recommendable, try to avoid those.
Oscar: Although I probably won't freeze to death there if I can't find my way home.
Me: There might be inconvenient critters down there. Did you read "The Hobbit"?
Oscar: No, but I want to see the movie.
Me: Ok. I don't think there are any cinemas down there. Trust me.
Oscar: I thought it was an underground movie, oh well.
Me: You hipster! (the phone insisted in writing YouTube for some reason) Well enough giving money to hungry phone companies. Now you know, god natt :) *
* this message turned into double sms with the last char, duh!
