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  1. Could wavefunctions simultaneously represent knowledge and reality?Jonte Hance, John Rarity & James Ladyman - 2022 - Quantum Studies: Mathematics and Foundations 9 (3):333-341.
    In discussion of the interpretation of quantum mechanics the terms ‘ontic’ and ‘epistemic’ are often used in the sense of pertaining to what exists, and pertaining to cognition or knowledge respectively. The terms are also often associated with the formal definitions given by Harrigan and Spekkens for the wavefunction in quantum mechanics to be ψ-ontic or ψ-epistemic in the context of the ontological models framework. The formal definitions are contradictories, so that the wavefunction can be either ψ-epistemic or ψ-ontic but (...)
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    Uniform Probability Distribution Over All Density Matrices.Eddy Keming Chen & Roderich Tumulka - 2022 - Quantum Studies: Mathematics and Foundations.
    Let ℋ be a finite-dimensional complex Hilbert space and D the set of density matrices on ℋ, i.e., the positive operators with trace 1. Our goal in this note is to identify a probability measure u on D that can be regarded as the uniform distribution over D. We propose a measure on D, argue that it can be so regarded, discuss its properties, and compute the joint distribution of the eigenvalues of a random density matrix distributed according to this (...)
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