Physicists have built a real-number version of quantum mechanics that makes all the same predictions as the standard theory, resolving a question that's simmered since the field began.

Correspondence to Dr ST Fonseca, Graduate Program in Rehabilitation Science, Physical Therapy Department, Universidade Federal de Minas Gerais, Minas Gerais, Avenida Presidênte Antônio Carlos, ...

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In common parlance, a model is something you build, play with, look at, and relate to something bigger and more complicated. Or maybe it’s a person whose job is to show off a product or idea. Both are ...