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Information and fundamental elements of the structure of quantum theory

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arxiv quant-ph/0212084 v1 pith:TRLKKJJS submitted 2002-12-13 quant-ph

classification quant-ph
keywords quantumnaturephysicsdescriptionelementaryinformationessentialplay
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Niels Bohr wrote: "There is no quantum world. There is only an abstract quantum physical description. It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we can say about Nature." In an analogous way, von Weizsaecker suggested that the notion of the elementary alternative, the "Ur", should play a pivotal role when constructing physics. Both approaches suggest that the concept of information should play an essential role in the foundations of any scientific description of Nature. We show that if, in our description of Nature, we use one definite proposition per elementary constituent of Nature, some of the essential characteristics of quantum physics, such as the irreducible randomness of individual events, quantum complementary and quantum entanglement, arise in a natural way. Then quantum physics is an elementary theory of information.

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  1. Adlam's Frame: comment on "Wigner's Frame"

    quant-ph 2026-07 conditional novelty 6.0 of 10

    Quantum reference frames do not evade the Wigner's-friend no-go theorems: the proposed resolution alters quantum theory and measures a substituted observable, not the friend's outcome.

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