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A team of scientists has unveiled a breakthrough that could one day propel computers to operate at speeds millions of times faster than today’s most advanced processors.

The discovery, led by researchers at the University of Arizona and their international collaborators, centers on harnessing ultrafast pulses of light to control the movement of electrons in graphene – a material just one atom thick.

The research, recently published in Nature Communications, demonstrates that electrons can be made to bypass barriers almost instantaneously by firing laser pulses lasting less than a trillionth of a second at graphene. This phenomenon, known as quantum tunneling, has long intrigued physicists, but the team’s ability to observe and manipulate it in real time marks a significant milestone.

Back in 2018, a scientist from the University of Texas at Austin proposed a protocol to generate randomness in a way that could be certified as truly unpredictable. That scientist, Scott Aaronson, now sees that idea become a working reality. “When I first proposed my certified randomness protocol in 2018, I had no idea how long I’d need to wait to see an experimental demonstration of it,” said Aaronson, who now directs a quantum center at a major university.

The experiment was carried out on a cutting-edge 56-qubit quantum computer, accessed remotely over the internet. The machine belongs to a company that recently made a significant upgrade to its system. The research team included experts from a large bank’s tech lab, national research centers, and universities.

To generate certified randomness, the team used a method called random circuit sampling, or RCS. The idea is to feed the quantum computer a series of tough problems, known as challenge circuits. The computer must solve them by choosing among many possible outcomes in a way that’s impossible to predict. Then, classical supercomputers step in to confirm whether the answers are genuinely random or not.

Putting hypersensitive quantum sensors in a living cell is a promising path for tracking cell growth and diagnosing diseases—even cancers—in their early stages.

Many of the best, most powerful quantum sensors can be created in small bits of diamond, but that leads to a separate issue: It’s hard to stick a diamond in a cell and get it to work.

“All kinds of those processes that you really need to probe on a , you cannot use something very big. You have to go inside the cell. For that, we need nanoparticles,” said University of Chicago Pritzker School of Molecular Engineering Ph.D. candidate Uri Zvi. “People have used diamond nanocrystals as biosensors before, but they discovered that they perform worse than what we would expect. Significantly worse.”

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Nvidia is in advanced talks to invest in PsiQuantum, a quantum computing startup, according to a person involved in the discussions. The investment would be the latest signal that Nvidia has shifted its stance on quantum computing after CEO Jensen Huang earlier this year seemed to cast doubt on…

In 2025, China tech is no longer just catching up—it’s rewriting the rules. From quantum computers that outperform U.S. supercomputers to humanoid robots priced for mass adoption, China tech is accelerating at a pace few imagined. In this video, Top 10 Discoveries Official explores the 8 cutting-edge breakthroughs that prove China tech is reshaping transportation, AI, clean energy, and even brain-computer interfaces. While the West debates and regulates, China tech builds—from driverless taxis and flying cars to homegrown AI chips and thorium reactors. Watch now to understand why the future might not be written in Silicon Valley, but in Shenzhen.

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