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Is Gravity Just Entropy Rising? Long-Shot Idea Gets Another Look.
...Entropy quantifies this growth of disorder. Indeed, when physicists used quantum mechanics to study what happens in the distorted space-time around a black hole, they find that black holes give...
New Math Proves That a Special Kind of Space-Time Is Unstable
...black hole will form. Here’s the proof of instability: Moschidis showed that when he adds even a minuscule amount of matter to an AdS space-time, a black hole (or black...
Physicists Create a Holographic Wormhole Using a Quantum Computer
...two black holes is created by EPR-like correlations between the microstates of the two black holes,” and that the duality might be more general than that: “It is very tempting...
Physicists Uncover Geometric ‘Theory Space’
...of space-time in our own universe, and yet gravity there works in much the same way as it does here. Both geometries, for instance, give rise to black holes —...
Universal Quantum Phenomenon Found in Strange Metals
...(The black hole pops out of the particle system like a hologram.) Remarkably, physicists find that black holes — incredibly dense, spherical objects whose gravity is so strong that not...
Physicists Mourn Joe Polchinski, Developer of Deep Ideas and Paradoxes
...share of lasting developments without following trends or getting into ruts. In important recent work, Polchinski reinvigorated an old paradox about black holes. Quantum fluctuations near the horizons of black...
Some Physicists See Signs of Cosmic Strings From the Big Bang
...Way, has a supermassive black hole in its center that weighs million or billions of times more than the sun. If two galaxies merge, their black holes will start to...
The Year in Physics
...wormholes and holograms — will one day bear glorious fruit. Progress on the Black Hole Information Paradox Here’s an extremely brief version of the black hole information paradox: Stuff...
In Search of Cracks in Albert Einstein’s Theory of Gravity
...but it doesn’t explain what happened at the Big Bang, or what happens inside black holes. The singularity of a black hole is mathematically very similar to the Big Bang...