This week, Google published a paper explaining how a quantum computer can find a private key in bitcoin in 9 minutes, which has ramifications for Ethereum, other tokens, private banks, and everything in the world. Quantum computing is easy to mistake for a faster version of conventional computing. But it’s not a more powerful chip … Read more
Quantum systems do not fail silently; they fall in the blink of an eye. In less time than it takes light to travel through a virus, a carefully ordered quantum state can break down, losing the coherence that makes quantum technology so powerful. For many years, this rapid separation occurs within one to two femtoseconds … Read more
For many years, the development of artificial intelligence has followed a simple rule: make it bigger with more groups, more connections, more computing power. However, a new study suggests otherwise. Instead of going big, the study’s authors built a very small object – a quantum system with nine spins interacting with an atom – and … Read more
A game with only three moves may sound simple. In quantum physics, it can still break old logic. That is the focus of a new experiment led by physicist Zhenghao Liu and his colleagues at the Technical University of Denmark. Writing in Science Advances, the team has constructed what they describe as the Greenberger-Horne-Zeilinger triple … Read more
IBM’s unveiling of two new supercomputers and Denmark’s plans to develop “the world’s most powerful business computer” mark just two of the latest developments in quantum technology’s rapid transition from experimental success to practical applications. There is growing promise of quantum technology’s ability to solve problems that today’s systems struggle to overcome or can’t even … Read more
In a white paper written on the same day as the Caltech paper, Gidney and his colleagues announced that they had developed a new method for breaking ECC that was at least 10 times more efficient than previous methods. They estimate that most cryptocurrencies would provide seconds to a machine with less than 500,000 qubits. … Read more
As digital communication accelerates and cyber threats increase, researchers are working to develop more secure ways to transmit information. One of the most promising methods is quantum cryptography, which uses individual photons to generate encryption keys. A team of researchers from the Department of Physics at the University of Warsaw has developed and tested a … Read more
A Theory of Gravity That Could Rewrite the Universe’s First Minutes The first fraction of a second after the Big Bang has always posed a problem. Physics can explain a lot about the universe once it’s stable and expanding, but in the beginning, when heat and energy were extremes, it was still hard to pin … Read more
Modern cosmology is built on three theoretical pillars: special relativity, Newtonian gravity, and quantum mechanics. Each is supported by considerable experimental evidence, but each describes the physical world in a way that contradicts the other two. Quantum theory describes a small. Objects that are driven by electromagnetic forces, both strong and weak. The dim world … Read more
Inside Short New research from Caltech and Oratomic suggests that fault-tolerant quantum computers may only need 10,000-20,000 qubits—much fewer than previously thought—which could speed up times up to this decade. The team has developed highly efficient quantum error correction systems using systems of neutral atoms, reducing the number of physical qubits from 1,000 to five. … Read more