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In an Age of AI, a Physicist Seeks What Endures
...physics research. “Confronting that — what is physics, really? What is enduring about the practice of physics itself? — that does not change with AI,” said Demers, who is leading...
In Hilbert Space, All Things Are Quantumly Possible
...ins and outs of Hilbert space would lead physicists to a deeper, more unified understanding of quantum physics. Here’s how von Neumann’s first commandment of quantum physics came to be,...
Theory of Fluids Enters the 21st Century
...up. In the second half of the 20th century, a conceptual tsunami swept through physics. The discovery that our world emerges from a microscopic world of molecules, which emerges from...
How Fast Is the Universe Really Expanding?
...I would actually like to pick your astrophysics brain if we could for a second because one of the things that I talked to Adam about is the issue of...
Researchers Reveal the Power of ‘Quantum Proofs’
...that hypothetical computers based on the laws of quantum physics would be able to rapidly solve difficult math problems. Ever since then, they’ve sought to pinpoint cases where quantum computers...
How Physicists Track and Trap the Elusive Neutrino
...during a radioactive process called beta decay. Something was missing, and there was no known physics to explain it. Then in 1930, the Austrian physicist Wolfgang Pauli proposed a radical...
A Dark Dimension Could Link Two of the Universe’s Great Unknowns
...of particle physics. In the new model, both the energy density of dark energy and the mass of dark matter change in concert. Another recent study imagines something similar. According...
How Many Elementary Particles Are There, Really?
Plausible answers range from 17 to — in all seriousness — 995.5. Every time I write about particle physics, I encounter a moment of uncertainty about a quantity that, at...
What Do Gödel’s Incompleteness Theorems Truly Mean?
...author of a 2024 paper on the relevance of Gödelian incompleteness for fundamental physics Kurt Gödel’s proof has far-reaching and unexpected consequences for mathematics. Given that physical laws are formulated...