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How Space and Time Could Be a Quantum Error-Correcting Code
...both kinds of universes contain black holes. “The most fundamental property of gravity is that there are black holes,” said Harlow, who is now an assistant professor of physics at...
Discoveries Fuel Fight Over Universe’s First Light
...evidence that supermassive black holes existed hundreds of millions of years before anyone thought possible. The new discoveries should make clear just how much black holes contributed to the reionization...
Physicists Eye Quantum-Gravity Interface
...gravitational fields. Quantum mechanics and general relativity dominate in disparate domains, and they seem to converge only in enormously dense, quantum-size black holes. In the laboratory, as the physicist Freeman...
The Particle That Broke a Cosmic Speed Limit
...sensors in every direction, instead of painting a telltale pattern that could be matched to, say, the locations of supermassive black holes or colliding galaxies, they created confusion. “It’s hard...
The Physical Origin of Universal Computing
...the evaporation of black holes. But even without a quantum theory of gravity, we can ask whether computers can efficiently simulate the best theories of modern physics — the Standard...
Yves Meyer, Wavelet Expert, Wins Abel Prize
...LIGO from the collisions of black holes. Meyer, 77, has also contributed to the mathematics of quasicrystals, number theory and the study of the Navier-Stokes equations. Meanwhile, he hopped all...
Galactic Beacons Get Snuffed Out in a Cosmic Eyeblink
...supermassive black holes’ lower-mass doppelgängers — turn inactive. When they’re accreting a lot of mass onto the black hole, their accretion disk is quite thin and luminous. But when that...
In Expanding de Sitter Space, Quantum Mechanics Gets Even More Elusive
...in de Sitter: to lose your prejudice.” Pushing Boundaries To try to make sense of the quantum mechanics of de Sitter space, some physicists have turned to black holes. Black...
Singularities in Space-Time Prove Hard to Kill
...cosmos and the hearts of black holes would truly mark edges of the map where clocks can’t tick and space stops. “Inside of black holes, I am positive there is...