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Hans Bethe’s ‘ansatz’ captured the behavior of any number of quantum particles, from a single electron to the countless electrons in a sheet of ice

Quanta Magazine
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73% Informative

Hans Bethe's ' ansatz' captures the behavior of any number of quantum particles, from a single electron to the countless electrons in a sheet of ice.

Bethe had stumbled upon a perfect quantum theory, one that worked for all kinds of particles.

He never did use it to explain real-world magnets, but not for blocks of atoms as he had envisioned.

Bethe’s ansatz was used to predict the effects of quantum gravity on everything else.

In the 1960s , theorists applied it to thin sheets of ice, which contained waves traveling down a line.

Each time experimenters cooled down the ice, they got a different multicolored image.

Bethe ansatz methods show up in so many places, said Pedro Vieira , a professor at the Perimeter Institute for Theoretical Physics in Waterloo , Canada . “It seems like nature appreciates beautiful things.”.

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English

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