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Quantum Darwinism, an Idea to Explain Objective Reality, Passes First Tests

Although aspects of the puzzle remain unresolved, QD helps heal the apparent rift between quantum and classical physics. Only recently, however, has quantum Darwinism been put to the experimental test. Three research groups, working independently in Italy, China, and Germany, have looked for the telltale signature of the natural selection process by which information about a quantum system gets repeatedly imprinted on various controlled environments. These tests are rudimentary, and experts say there’s still much more to be done before we can feel sure that QD provides the right picture of how our concrete reality condenses from the multiple options that quantum mechanics offers. Yet so far, the theory checks out.

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