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How Hans Bethe Stumbled Upon Perfect Quantum Theories
...1980s. Now few areas of physics remain untouched by Bethe’s nearly century-old insight. “Its importance has continued growing to this day,” said Charlotte Kristjansen, a professor at the Niels Bohr...
Experiments Spell Doom for Decades-Old Explanation of Quantum Weirdness
...hundred or so years. But now we may be ready to eliminate at least one set of proposals. Recent experiments have mobilized the extreme sensitivity of particle physics instruments to...
Wormholes Reveal a Way to Manipulate Black Hole Information in the Lab
...where to look for the most elusive theory in physics: one that unites quantum mechanics with the theory of general relativity that describes gravity. And, for good measure, it would...
Puzzling Quantum Scenario Appears Not to Conserve Energy
...be an expression of the fundamental symmetries of the universe — a “very important part of the edifice of physics,” said Chiara Marletto, a physicist at the University of Oxford....
Diminishing Dark Energy May Evade the ‘Swampland’ of Impossible Universes
...physics, which has long predicted that space should be suffused with substantial amounts of energy. The quantum fields that permeate space fluctuate in strength, never staying exactly at zero; particles...
Dark Matter Experiment Finds Unexplained Signal
Researchers say there are three possible explanations for the anomalous data. One is mundane. Two would revolutionize physics. The physicists who run the world’s most sensitive experimental search for dark...
What Is Entropy? A Measure of Just How Little We Really Know.
...and why the world appears deterministic rather than quantum mechanically uncertain. But despite its fundamental importance, entropy is perhaps the most divisive concept in physics. “Entropy has always been a...
Neutrinos Lead to Unexpected Discovery in Basic Math
...to compute. Moreover, they realized that the relationship between eigenvectors and eigenvalues — ubiquitous objects in math, physics and engineering that have been studied since the 18th century — seemed...
Does Natural Law Need Elegant Mathematics?
...of the appropriateness of the language of mathematics for the formulation of the laws of physics is a wonderful gift which we neither understand nor deserve.” Similar thoughts have been...