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‘Quantum Atmospheres’ May Reveal Secrets of Matter
...a ceramic-like insulator. Topological insulators have drawn attention for their unusual physics as well as for their potential use in quantum computers and so-called spintronic devices, which utilize electrons’ spins...
Real-Life Schrödinger’s Cats Probe the Boundary of the Quantum World
...same, these exotic objects are worth heeding, because they show with unprecedented clarity that quantum mechanics is not just the physics of the extremely small. “Schrödinger’s kittens,” loosely speaking, are...
What Do Gödel’s Incompleteness Theorems Truly Mean?
...author of a 2024 paper on the relevance of Gödelian incompleteness for fundamental physics Kurt Gödel’s proof has far-reaching and unexpected consequences for mathematics. Given that physical laws are formulated...
High-Temperature Superconductivity Understood at Last
...in a particular direction, like a quantum-size magnet. The late Philip Anderson, an American Nobel laureate and all-around legend in condensed matter physics, put forth a theory just months after...
A Dark Dimension Could Link Two of the Universe’s Great Unknowns
...of particle physics. In the new model, both the energy density of dark energy and the mass of dark matter change in concert. Another recent study imagines something similar. According...
How Physicists Track and Trap the Elusive Neutrino
...during a radioactive process called beta decay. Something was missing, and there was no known physics to explain it. Then in 1930, the Austrian physicist Wolfgang Pauli proposed a radical...
Why Gravity Is Not Like the Other Forces
...these possibilities remain conjectural and incompletely understood. A working quantum theory of gravity is perhaps the loftiest goal in physics today. What is it that makes gravity unique? What’s different...
Neutrinos Suggest Solution to Mystery of Universe’s Existence
...Model of particle physics, every particle has a mirror-image particle that carries the opposite electrical charge — an antimatter particle. When matter and antimatter particles collide, they annihilate in a...
Physicists Use Quantum Mechanics to Pull Energy out of Nothing
...battery — but all he has access to is empty space. Fortunately, his friend Alice has a fully equipped physics lab in a far-off location. Alice measures the field in...