Posts

A Fundamental Quantum Rule May Entangle the Entire Universe

-
Image
 A Fundamental Quantum Rule May Entangle the Entire Universe At the most fundamental level of physics, nature does not behave locally. Particles separated by vast distances can act not as independent objects, but as components of a single quantum system. Researchers in Poland have now demonstrated that this kind of nonlocal behavior, which stems from the simple fact that particles of the same type are indistinguishable, can be observed experimentally for nearly all possible states of identical particles. According to quantum mechanics, every particle of a given type, such as photons or electrons, is inherently entangled with every other particle of that same type, whether it is nearby or located in a distant galaxy. This counterintuitive idea follows directly from a core principle of the theory: particles of the same type are fundamentally identical. This suggests the existence of a universal source of entanglement that underlies the strange nonlocal properties of the quantum world...
Post a Comment
Read more

A Tiny Particle Flip Could Reveal New Laws of the Universe

-
Image
 A Tiny Particle Flip Could Reveal New Laws of the Universe A major international research effort led by scientists at Sun Yat-sen University and the Institute of Modern Physics of the Chinese Academy of Sciences is behind a new experiment called MACE. The goal is to investigate whether muonium, a short-lived system made of a positive muon and an electron, can spontaneously convert into antimuonium, its antimatter counterpart. According to current physics theory, such a change should never occur. Detecting it would signal a breakdown of lepton flavor conservation, a core principle of the Standard Model of particle physics, and would provide direct evidence of physics beyond today’s framework. “The conversion of muonium to antimuonium represents a clean and unique probe of new physics in the leptonic sector,” explains the research team. “Unlike other charged lepton flavor violation processes, this conversion is sensitive to ∆Lℓ = 2 models that are fundamentally distinct and could re...
Post a Comment
Read more

New AI models trained on physics, not words, are driving scientific discovery

-
Image
 New AI models trained on physics, not words, are driving scientific discovery While popular AI models such as ChatGPT are trained on language or photographs, new models created by researchers from the Polymathic AI collaboration are trained using real scientific datasets. The models are already using knowledge from one field to address seemingly completely different problems in another. While most AI models — including ChatGPT — are trained on text and images, a multidisciplinary team, including researchers from the University of Cambridge, has something different in mind: AI trained on physics. Recently, members of the Polymathic AI collaboration presented two new AI models trained using real scientific datasets to tackle problems in astronomy and fluid-like systems. The models — called Walrus and AION-1 —can apply the knowledge they gain from one class of physical systems to completely different problems. For instance, Walrus can tackle systems ranging from exploding stars to Wi...
Post a Comment
Read more

Public Physics Talk | How AI Is and Isn't Revolutionizing AI

-
Image
 Public Physics Talk | How AI Is and Isn't Revolutionizing AI Artificial Intelligence (AI) I is a transformative technology that is quickly raising the ambitions of scientists. Last year's Nobel prizes in physics and chemistry highlighted the significance of these developments. However, the capabilities that AI enables and the ways those capabilities fit into the scientific method vary significantly. The incorporation of AI into scientific workflows raises important questions. For example, how do we maintain scientific rigor when incorporating AI components that are approximate or may ‘hallucinate’? These emerging patterns also are giving rise to a new set of questions in the philosophy of science. What is the role of interpretability, causality, prediction, hypothesis generation, etc.? What is the role of human understanding? I will describe some of the ways that AI is revolutionizing science, but I will also stress how these advances aren’t enabled by AI alone. I will end wit...
Post a Comment
Read more

100 Years Before Quantum Mechanics, a Physicist Spotted Its Hidden Clue

-
Image
 100 Years Before Quantum Mechanics, a Physicist Spotted Its Hidden Clue Hamilton’s 19th-century insight connecting light and motion became a cornerstone of quantum mechanics and modern physics. William Rowan Hamilton, the Irish mathematician and physicist born 220 years ago last month, is often remembered for an unusual act in 1843, when he carved a mathematical formula into the stone of Dublin’s Broome Bridge.During his own lifetime, however, Hamilton’s standing rested on breakthroughs he made much earlier, in the 1820s and early 1830s, while he was still in his twenties. In that period, he introduced powerful new mathematical methods for analyzing the paths of light rays (or “geometric optics”) and describing how physical objects move (“mechanics”). An intriguing feature of Hamilton’s work was his use of an analogy between the trajectory of a light ray and the motion of a material particle. That comparison made sense if light were composed of particles, as Isaac Newton had argue...
Post a Comment
Read more

Lab study suggests longer waves fracture floating ice sheets at lower stress

-
Image
Lab study suggests longer waves fracture floating ice sheets at lower stress When waves are moving across ice-covered seas, they can cause sheets of ice to bend and ultimately break. Understanding the processes underlying these wave-induced ice fractures and predicting when they will occur could help to better forecast how climate change will impact the environment and marine ecosystems on Earth. Researchers at PMMH Lab, ESPCI, CNRS, PSL University, Sorbonne Université and Université Paris Cité recently performed a new laboratory experiment aimed at shedding new light on this phenomenon. The results of this experiment, published in Physical Review Letters, suggest that the stress at which ice sheets break depends on the length of the underlying waves. Global Energy Awards Nomination link: https://globalenergyawards.org/award-nomination/... Visit Our Website: globalenergyawards.org Contact Us: support@globalenergyawards.org
Post a Comment
Read more

Novel quantum refrigerator benefits from problematic noise

-
Image
  Novel quantum refrigerator benefits from problematic noise For quantum computers to function, they must be kept at extremely low temperatures. However, today's cooling systems also generate noise that interferes with the fragile quantum information they are meant to protect. Now, researchers at Chalmers University of Technology in Sweden have developed an entirely new type of quantum refrigerator, which is partly driven by the noise itself. This refrigerator enables very precise control over heat and energy flows and could play an important role in scaling up quantum technology. Quantum technology is expected to transform multiple fundamental technologies in society, with applications ranging from drug development and artificial intelligence to logistics and secure communication. Yet, before quantum technology can be put to practical use, various major technical challenges remain. One of the most critical is protecting and controlling the delicate quantum states upon which this t...
Post a Comment
Read more