A new physics paper takes a step toward creating a long-sought “theory of everything” by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.
Category: quantum physics – Page 28
Global first: Quantum computer generates bits of unpredictable randomness
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.
Diamond nanoparticles get a quantum upgrade with shell inspired by TV technology
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 molecular level, 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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China’s New Tech Shocks the U.S. — The World Will Never Be the Same!
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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Everything Evaporates: From Neutron Stars to You, the Universe Is on a Clock
What if black holes weren’t the only things slowly vanishing from existence? Scientists have now shown that all dense cosmic bodies—from neutron stars to white dwarfs—might eventually evaporate via Hawking-like radiation.
Even more shocking, the end of the universe could come far sooner than expected, “only” 1078 years from now, not the impossibly long 101100 years once predicted. In an ambitious blend of astrophysics, quantum theory, and math, this playful yet serious study also computes the eventual fates of the Moon—and even a human.
Black Holes Aren’t Alone