Title: On bounded posets arising from quantum mechanical measurements
Language: English
Authors: Länger, Helmut 
Dorninger, Dietmar 
Category: Research Article
Keywords: Poset with an antitone involution; Quantum measurement; Multidimensional probability; Boolean orthoposet; Orthomodularity; Commutativity
Issue Date: 2016
Journal: International Journal of Theoretical Physics
Let S be a set of states of a physical system. The probabilities p(s) of the occurrence of an event when the system is in different states s ∈ S define a function from S to [0, 1] called a numerical event or, more precisely, an S-probability. If one orders a set P of S-probabilities in respect to the order of functions, further includes the constant functions 0 and 1 and defines p′ = 1 − p for every p ∈ P, then one obtains a bounded poset of S-probabilities with an antitone involution. We study these posets in respect to various conditions about the existence of the sum of certain functions within the posets and derive properties from these conditions. In particular, questions of relations between different classes of S-probabilities arising this way are settled, algebraic representations are provided and the property that two S-probabilities commute is characterized which is essential for recognizing a classical physical system.
DOI: 10.1007/s10773-016-3068-x
Library ID: AC11360155
URN: urn:nbn:at:at-ubtuw:3-1914
ISSN: 1572-9575
Organisation: E104 - Institut für Diskrete Mathematik und Geometrie 
Publication Type: Article
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