Scientists simulate ‘baby’ wormhole without tearing apart space and time | space

Scientists simulate ‘baby’ wormhole without tearing apart space and time | space

It’s a mainstay of science fiction, it’s tiny and doesn’t exist in physical space, but researchers say they’ve created what is theoretically a wormhole.

Researchers have announced that they have simulated two miniature black holes in a quantum computer and transmitted a message between them through what amounts to a tunnel in space-time.

They said that based on the teleported quantum information, a traversable wormhole appeared to have appeared, but that no rift in space and time was physically created in the experiment, according to the study, published in the journal Nature on Wednesday.

A wormhole – a rift in space and time – is thought to be a bridge between two distant regions of the universe. Scientists call them Einstein-Rosen bridges after the two physicists who described them: Albert Einstein and Nathan Rosen.

“Looks like a duck, walks like a duck, quacks like a duck. That’s what we can say at this stage — that we have something that, in terms of the properties we’re looking at, looks like a wormhole,” said physicist and study co-author Joseph Liken of Fermilab, the US particle physics laboratory and accelerator .

Caltech physicist Maria Spiropoulou, a co-author of the study, described it as having the characteristics of a “baby wormhole” and now hopes to create “wormholes for adults and toddlers step by step.” The dynamics of the wormhole were observed on a quantum device at Google called the Sycamore quantum processor.

Experts who were not involved in the experiment cautioned that it is important to note that a physical hole has not actually been created, but noted the future possibilities.

Daniel Harlow, a physicist at MIT, told the New York Times the experiment was based on modeling that was so simple that it could also be explored using pencil and paper.

“I would argue that this doesn’t teach us anything about quantum gravity that we didn’t already know,” Harlow wrote. “On the other hand, I think it’s exciting as a technical achievement, because if we can’t even do that (and we haven’t been able to so far), then simulating more interesting theories of quantum gravity will certainly be out of the question.”

The authors of the study themselves clarified that scientists are still far from being able to send people or other living beings through such a portal.

“Experimentally, for me, I’ll tell you, it’s very, very far. People come up to me and ask me, ‘Can you let your dog down the wormhole?’ So no,” Spiropoulou told reporters during a video briefing. “… That’s a huge leap.”

Lykken added: “There’s a difference between something being possible in principle and being possible in reality.

“So don’t hold your breath to send your dog through the wormhole. But you have to start somewhere. And I think it’s just exciting to me that we can even get our hands on it.”

Such wormholes are consistent with Einstein’s theory of general relativity, which focuses on gravity, one of the fundamental forces in the universe. The term “wormhole” was coined by physicist John Wheeler in the 1950s.

“These ideas have been around for a long time, and they’re very powerful ideas,” Liken said. “But at the end of the day, we’re in experimental science, and we’ve been struggling for a very long time to find a way to explore these ideas in the lab.” And that’s what’s really exciting about it. It’s not just “Well, wormholes are cool.” It’s a way to actually look at these very fundamental problems of our universe in a laboratory setting.

With Reuters

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