In a new model of cosmology, the universe we see is just one in a cycle of many universes. Each of these universes has its own phases of expansion, contraction and a Big Bang.
Researcher Mir Faizal said, "Our spacetime is only an approximation to some purely mathematical theory describing reality, and the geometry of spacetime emerges from this theory.
"The fact that the geometry of spacetime is bounded by a minimum length and a maximum energy can be used to study quantum gravitational effects on cosmology, and doing this we have been able to study the pre-Big Bang cosmology".
The team took two inputs – that spacetime breaks down at a minimum length and that it is not possible for any object in this spacetime to have an energy beyond a certain maximum energy – and applied it to the thermodynamical description of general theory of relativity. What they ended up with was four distinct phases of the universe, supporting the idea of a cyclical universe.
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