Abstract
We propose to describe physical systems (quantum or classical) with the aid of structures called information systems. We argue that in each theoretical description of the phenomenology of the preparation process one can identify the set of all (pure) states of a physical system with the set of (total) elements of some information system. Next we give some consequences of the above arguments.
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Posiewnik, A. On some definition of physical state. Int J Theor Phys 24, 135–140 (1985). https://doi.org/10.1007/BF00672648
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DOI: https://doi.org/10.1007/BF00672648