Physicists may have finally understood how our Universe was created. They have finally been able to decode the Big Bang theory.
The Big Bang Theory describes cosmic inflation and is the most widely supported explanation of how our Universe began. Initially, the universe inflated like a balloon. Afterward, everything went boom.
However, earlier physicists weren’t able to establish a connection between the two things. But that might have changed now. A new study is suggesting a factual way to establish a connection between the two epochs.
During the first period, the universe grew from an infinitely small point to nearly an octillion (1 followed by 27 zeros) times in size, that too in less than a trillionth of a second.
The underlying inflation period was followed by a much subtle but violent period of expansion. Today, we construe this as the Big Bang theory.
During the Big Bang, an incredibly hot fireball of fundamental particles — such as protons, neutrons, and electrons — expanded and cooled to form the atoms, stars, and galaxies we observe through telescopes today.
“The post-inflation reheating period sets up the conditions for the Big Bang and, in some sense, puts the ‘bang’ in the Big Bang”, David Kaiser, a professor of physics at MIT.
Scientists, when they try to study the Universe, they do a particle experiment at incredibly high temperatures. The transition from the cold inflationary period to the hot period is something that holds key evidence to apprehend which particles can withstand such high temperatures.
“Once those particles are produced, they bounce around and knock into each other, transferring momentum and energy”, said Nguyen. He said that’s what thermalizes and reheats the universe to set the initial conditions for the Big Bang.
Nguyen and her colleagues created a model for the Big Bang Theory and used simulations to predict what the Universe should look so it can be comprehended.