Researchers call other worlds such as reflection in a mirror is one way to solve the mystery universe which has never been known.
The first paper to discuss the mirror world was written by Latham Boyle, a physicist from the Perimeter Institute in Ontario, Canada and his colleagues. The paper was published in 2018 in the journal Physical Review Letters.
Boyle’s research is an expansion to close a hole in the theory that tells the origin story of the universe, Lambda-Cold Dark Matter (ΛCDM).
In his theory, Boyle likens the universe to be round and flat. In that area, the farther to the end of the universe, the more time goes back, even to the time of his birth.
Reported Live Sciencewhen astronomers look further into space, they are actually looking into the past.
The most distant galaxy we can see, GN-z11, appears to have been around 13.4 billion years ago, or 400 million years after the Big Bang.
Before that, the universe had a ‘dark age’ that lasted millions of years. At that time nothing was bright enough to be seen.
Back again, the universe experienced the oldest thing we can see, namely the Cosmic Microwave Background (CMB), which formed 370 thousand years after the Big Bang, when the universe cooled from hot plasma.
University of Hawaii astrophysicist John Learned has published a second paper on mirror worlds, describing the universe as a funnel that narrows as you look further into other galaxies.
Like Boyle’s theory, the funnel refers to the backwardness of time, so the narrower part of the cone refers to the early days of the universe’s formation to the Big Bang phenomenon.
Do not stop there, Learned assumes the funnel expands in the opposite direction from the time orientation of the universe we experience.
“You find that it extrapolates, expands – it continues analytically, physicists would say, to a double cone,” he said, referring to the second universe behind the Big Bang.
Recently a study revealed how to find a mirror world that is considered to be able to solve the big riddle in the world of cosmology, Hubble Constant.
Experts believe the universe continued to expand after the Big Bang. The Hubble Constant is a term in cosmology that refers to the speed at which the universe is expanding.
Hubble Constant’s predicted velocity is much slower than calculated using the most precise calculator on Earth. The difference is what makes scientists scratch their heads and keep trying to solve them.
The speed difference has been revealed by cosmological researchers such as Francis-Yan Cyr-Racine, assistant professor in the Department of Physics and Astronomy at the University of New Mexico, and Fei Ge and Lloyd Knox of the University of California.
Reported from Science DailyCyr-Racine, Ge and Knox have discovered a mathematical property previously unnoticed by other researchers.
This property in principle allows for a faster expansion of the universe, but hardly changes the other predictive components of standard cosmological models.
Their research, entitled ‘Symmetry of Cosmological Observables, a Mirror World Dark Sector, and the Hubble Constant’ has been published in Physical Review Letters.
The results of this study open up a new approach to linking CMB and large-scale structural observations with a high Hubble Constant.
In other words, the researcher can find a cosmological model in which scaling changes can be realized without disturbing the measurement of a quantity that could change its symmetry.
If the universe worked out according to the study, the researchers suspect there might be a reflection of a universe very similar to ours but invisible except through gravitational effects on our world.
Then the dark sector of the ‘mirror world’ allows for effective scaling of gravity levels while maintaining the current precisely measured average photon density.
“In practice, this symmetry of scaling can only be realized by incorporating a mirror world into the model-a parallel universe with new particles that are all copies of known particles,” Cyr-Racine said.
“The idea of a mirror world first emerged in the 1990s but was not previously recognized as a potential solution to the Hubble constant problem,” he added.
(lom / fea)
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