Scientists at the University of Waterloo have proposed a new way to explain how the universe began, offering a fresh perspective on the Big Bang and its earliest moments. Their findings suggest that the universe’s rapid early expansion may have emerged naturally from a deeper and more complete theory known as quantum gravity.
The research was led by Dr. Niayesh Afshordi, a professor of physics and astronomy at the University of Waterloo and the Perimeter Institute (PI). His team explored a new way to combine gravity with quantum physics, which describes how the smallest particles behave. Although Einstein’s theory of general relativity has worked extremely well for over a century, it fails under the extreme conditions present at the universe’s birth. To overcome this, the researchers used Quadratic Quantum Gravity, a framework that remains mathematically stable even at the extremely high energies similar to those during the Big Bang.
