・The Big Bang model is explained by Cosmology based on theory of elementary particles.
・Elementary particle are explained by several kinds of symmetry in theory of elementary particles.
・Although it is assumed that there are an equivalent amount of substances and anti-matter in the universe from this, it is rare that anti-matter is observed.
・The asymmetry (that is, there is almost no anti-matter) of existence of the substance in the universe is one mystery in theory of elementary particles.
Since the fundamental power of anti-matter is repulsive force, it is thought that anti-matter was diffused at high speed rather than the substance after separation of gravity and antigravity (１０Ｅ－４４（ten to the minus 44th） second after the Big Bang).
○Grand unification theory or Grand unified theory、GUT[Electromagnetic force + Weak interaction+ Strong interaction]
• This is the theory that unifies electromagnetic force, weak interaction and strong interaction. There is more than one model. However, this theory is incomplete.
• GUT is the basis of the Big Bang theory (inflationary universe).
・Inflation cosmology (Katsuhiko Sato, Alan Guth 1981): The theory is that space is the magnitude of 10 26-th power (Bacteria became to be the size of the galaxy! In fact about 10cm!)in the period from after 10 minus 36 square seconds immediately after birth until after 10 minus 34 square seconds.
• By inflation, some of the problems of big bang cosmology, which has been pointed out in the 1970s is resolved.
(Problems)
1－That the universe is observed is very flat. (Flatness problem)
2 －The universe is extremely uniform. (Horizon problem)
３－Phase defect of space in which exist in many models of grand unified theory (GUT) has been predicted is not observed at all. (Monopole problem)
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