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quant-ph2025
A reconstruction of quantum theory for spinning particles
Ulf Klein
As part of a probabilistic reconstruction of quantum theory (QT), we show that spin is not a purely quantum mechanical phenomenon, as has long been assumed. Rather, this phenomenon…
quant-ph2025
A reconstruction of quantum theory for nonspinning particles
Ulf Klein
Within the framework of the individuality interpretation of quantum theory (QT), the basic equations of QT cannot be derived from the basic equations of classical mechanics (CM). T…
quant-ph2024
Quantizing Galilean spacetime: a reconstruction of Maxwell's equations in empty space
Ulf Klein
As was recently shown, non-relativistic quantum theory can be derived by means of a projection method from a continuum of classical solutions for (massive) particles. In this paper…