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MIT physicists and colleagues have for the first time measured the geometry, or shape, of electrons in solids at the quantum level. Scientists have long known how to measure the energies and velocities of electrons in crystalline materials, but until now, those systems' quantum geometry could only be inferred theoretically, or sometimes not at all.
The MIT team solved the problem using a technique called angle-resolved photoemission spectroscopy, or ARPES.
Does this mean geometry class is gonna be even harder now?
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Yes and you will really need to work hard to pass high school exams. ;)
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