Yureisaito/Artgrab/Henvry/iStock
FOR an experiment designed to help us find evidence of other universes, it appears surprisingly modest. As Zoran Hadzibabic walks me into the lab, it feels extra like a classroom, full with linoleum flooring, fluorescent lighting and a whiteboard with scribbled equations. And but it’s right here, in amongst the tangle of stainless-steel chambers and brightly colored wires set on a raised platform, that researchers are attempting to copy the primordial quantum effervescent that could have created our universe in a huge multiverse.
The thought that our universe is only one of many is among the many most fascinating in physics, and the logic appears sound sufficient, within the sense that the thought is itself an outgrowth of extensively accepted theories about how the cosmos got here to be what we see right now. But there additionally occurs to be zero empirical evidence for its existence – which is the place Hadzibabic’s experiment on the University of Cambridge is available in.
The researchers are betting that if we will cool and manipulate potassium atoms to extraordinarily low temperatures, when tiny bubbles ought to kind spontaneously, we could have a proxy for the in any other case unobservable processes thought to have sired new universes. By finding out these bubbles, we could glean contemporary clues as to how any previous collisions between our universe and others would go away a mark that we would plausibly seek out in astronomical knowledge.
“The absolute dream would be that there’s something in the sky that we observed which confirms what we predicted in this experiment,” says Matt Johnson, a theoretical physicist on the Perimeter Institute in Canada.
What is the multiverse?
To be clear, what …