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An Italian Cosmologist Who Wanders in Dante’s Dark Wood
...about cosmology at all when I started physics, and even then I wasn’t very convinced about physics in itself. But physics offered me a good opportunity to combine several different...
Quantum Theory Rebuilt From Simple Physical Principles
...studied detached from its application to physics,” Chiribella said. This approach doesn’t address any underlying physics at all, but just considers how outputs are related to inputs: what we can...
A New Map of the Universe, Painted With Cosmic Neutrinos
Physicists finally know where at least some of these high-energy particles come from, which helps make the neutrinos useful for exploring fundamental physics. Of the 100 trillion neutrinos that pass...
What Is the Nature of Time?
...in the past? And how might quantum physics redefine it in the future? Frank is the Herman Feshbach Professor of Physics at M.I.T., a distinguished professor at Arizona State University,...
LIGO Reports Second Black-Hole Merger
...professor of physics at Syracuse University, told Quanta that the two observations to date “tell us the black holes exist over a broad range of masses, from about seven to...
Colliding Black Holes Tell New Story of Stars
...universe, akin, some said, to when Galileo first pointed a telescope at the sky. Already, the new gravitational-wave data has shaken up the field of astrophysics. In response, three dozen...
Gravitational Waves Discovered at Long Last
...make waves in space-time. Rainer Weiss, a professor of physics at the Massachusetts Institute of Technology, around 1970. Still, Einstein and his colleagues continued to waffle. Some physicists argued that...
Quantum Computing Without Qubits
...but rather are designed to explore specific problems in quantum physics. A classical computer would have to run for thousands of years to compute the quantum equations of motion for...
A Fluid New Path in Grand Math Challenge
...don’t fully capture the ocean’s physics.) “My mindset has certainly changed,” he said. A central insight of computer science is that, whenever a physical phenomenon is complex enough, it should...