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Tag archives: wavefunction

What are quantum wavefunctions?

By James Dacey

Graphic of Greek letter psi

Seeking the meaning of psi. (Courtesy: Pasieka/Science Photo Library; Mat Ward)

In the May issue of Physics World, science writer Jon Cartwright explores some of the most profound questions about the nature of reality. His feature, “The life of psi”, engages with an apparently simple question: what are quantum wavefunctions? Of course, like many of the most interesting questions in physics, the answer to the question is far from elementary. In fact, it is a question that goes right to the heart of quantum mechanics and philosophy, and one that has puzzled some of the greatest minds for the best part of a century.


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