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In Hilbert Space, All Things Are Quantumly Possible
...a Hilbert space, such as slicing it up in different ways or rotating one slice into another. In this arena, they have found that black holes seem a bit less...
Theory of Fluids Enters the 21st Century
...of black holes: Einstein’s theory of gravity. If a black hole had a secret identity as an imperfect, energy-dissipating, viscous fluid, then an effective field theory for imperfect, energy-dissipating, viscous...
Astrophysicists Puzzle Over Webb’s New Universe
...should make it impossible for black holes to grow tens of millions of times larger in the time available. But recent computer simulations suggest that black holes might have something...
How Physicists Track and Trap the Elusive Neutrino
...active galaxies powered by supermassive black holes. On the floor of the Mediterranean Sea, the Cubic Kilometer Neutrino Telescope (KM3NET) has detected the highest-energy cosmic neutrino on record. Its source...
What Do Gödel’s Incompleteness Theorems Truly Mean?
...of the universe’s origin and the interior of black holes. In the Standard Model of particle physics, described by a quantum field theory, direct calculations yield infinite results for energies...
What Causes Lightning? The Answer Keeps Getting More Interesting.
...more typically associated with supernovas, black holes, and particle colliders than with fluffy clouds. “There is a growing consensus in the field that high-energy processes play a critical role in...
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...
A New Complexity Theory for the Quantum Age
...spoke with Yuen about where complexity theory falls short, what quantum cryptography has to do with black holes, and the importance of open-ended research. The interview has been condensed and...
How Modern and Antique Technologies Reveal a Dynamic Cosmos
...region that features a binary system of mammoth yet compact objects. There, two supermassive black holes and their surrounding accretion disks are locked in a dance that will eventually merge...