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Physicists Peer Inside a Fireball of Quantum Matter
...information,” said Tetyana Galatyuk, one of the 200 members of the HADES collaboration. The experiment, reported this week in Nature Physics, is the first to measure the temperature of quark...
Why Stephen Hawking’s Black Hole Puzzle Keeps Puzzling
...who died today at 76, was something of a betting man, regularly entering into friendly wagers with his colleagues over key questions in theoretical physics. “I sensed when Stephen and...
Closed Loophole Confirms the Unreality of the Quantum World
...for anti-realism at the level of the quantum. But in May, Rafael Chaves and colleagues at the International Institute of Physics in Natal, Brazil, found a loophole. They showed that...
How Big Can the Quantum World Be? Physicists Probe the Limits.
...as motionless as the laws of physics permit. Two teams of researchers, in Austria and Switzerland, have independently succeeded in freezing such minuscule nanoparticles, just 100 to 140 nanometers across,...
Solution: ‘Is It Turtles All the Way Down?’
While the age-old chicken-and-egg paradox is easily answered, the question of infinite regress in physics is far from resolved. In February’s puzzle column, we explored some ways in which science...
Top Dark Matter Candidate Loses Ground to Tiniest Competitor
...neutron stars. Together these teams may someday cover most of the possible frequencies. A discovery would permanently rewrite the laws of particle physics and cosmology, but today axions remain entirely...
How Quantum Physicists ‘Flipped Time’ (and How They Didn’t)
...computers, and Zeilinger’s work on the phenomenon won him a share of the 2022 Nobel Prize in Physics. For the flippable nature of quantum time, Franke-Arnold said, “it’s very early...
It Might Be Possible to Detect Gravitons After All
...hypothetical particle thought to carry the force of gravity — is the ultimate physics experiment. Conventional wisdom, however, says it can’t be done. According to one infamous estimate, an Earth-size...
Physicists Spot Quantum Tornadoes Twirling in a ‘Supersolid’
...predictions, but the images alone are a satisfying validation, he said. “This is very relevant for the whole physics community.” Hertkorn wants to see the results replicated by other groups...