Did a 1-dimensional magnet detect a 248-dimensional Lie algebra?
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🧮 math-ph
cond-mat.stat-mechmath.MP
keywords
dimensionalalgebramagnetaimedarticlechainconnectingdetect
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About a year ago, a team of physicists reported in Science that they had observed "evidence for E8 symmetry" in the laboratory. This expository article is aimed at mathematicians and explains the chain of reasoning connecting measurements on a quasi-1-dimensional magnet with a 248-dimensional Lie algebra.
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