Researchers have modeled the first trillionth of seconds after the Big Bang. They found that these events influenced the distribution of galaxies in the universe.
Physicists from the universities of Göttingen and Auckland (New Zealand) have used computer simulations to find that a complex network of structures could have formed within the first trillionth of a second after the Big Bang. The behavior of these objects mimics the distribution of galaxies in the modern universe. However, unlike her, the primitive structures were microscopically small. Typical objects have a mass of only a few grams – much lighter than modern elementary particles. The results of the study appeared in the journal Physical Review D.
The researchers were able to observe the development of higher density areas that are held together by their own gravity. “The physical space represented by our simulations would fit into one proton,” said Professor Jens Niemeyer, head of the Astrophysical Cosmology Group at the University of Göttingen. “This is perhaps the largest simulation of the smallest region of the universe done so far.”
The researchers added that the formation of such structures, as well as their movements and interactions, should have generated background noise from gravitational waves. Simulations can be used to calculate the strength of this gravitational signal, which can be measured in the future.
They also suggested that tiny black holes could form if these structures were destroyed. If this happens, they can have observable consequences, or become part of mysterious dark matter.