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A Child’s Puzzle Has Helped Unlock the Secrets of Magnetism
People have known about magnets since ancient times, but the physics of ferromagnetism remains a mystery. Now a familiar puzzle is getting physicists closer to the answer. For a few...
Roberto Peccei and Helen Quinn, Driving Around Stanford in a Clunky Jeep
...or out — in clearing a path to inspiration. Four decades ago, Helen Quinn and Roberto Peccei took on one of the great problems in theoretical particle physics: the strong...
Dark Energy May Be Incompatible With String Theory
...awoke in Vienna and groggily scrolled through an online repository of newly posted physics papers. One title startled him into full consciousness. The paper, by the prominent string theorist Cumrun...
Joe Polchinski’s Restless Pursuit of Quantum Gravity
...or out — in clearing a path to inspiration. As a young professor at Harvard University in 1997, Juan Maldacena reshaped fundamental physics with the discovery that, as he put...
Quantum Tunnels Show How Particles Can Break the Speed of Light
...traveling through space. In that way it almost seems weirder than entanglement.” In a paper published in the New Journal of Physics in September, Pollak and two colleagues argued that...
New Support for Alternative Quantum View
...is exactly what the standard view of quantum mechanics, often called the Copenhagen interpretation, asks us to believe. Instead of the clear-cut positions and movements of Newtonian physics, we have...
![An illustration showing three stacked sheets of carbon atoms, each offset from the one below by half a lattice spacing.]](https://www.quantamagazine.org/wp-content/uploads/2021/06/Trilayer_Graphene_520x292.jpg)
Graphene Superconductors May Be Less Exotic Than Physicists Hoped
...of 20th-century physics who tried and failed to understand why many metals carry current without resistance at low temperatures. In 1957, nearly half a century after this standard kind of...
He Seeks Mystery Magnetic Fields With His Quantum Compass
...It’s not an accident. There are several special things about diamonds that make them great for quantum physics. Humans love diamonds because diamonds are transparent and sparkly, which is related...
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...