Derivation of quantum theory with superselection rules
Quantum Physics
2026-05-26 v3
Abstract
We reconstruct finite-dimensional quantum theory with superselection rules, which can describe hybrid quantum-classical systems, from four purely operational postulates: symmetric sharpness, complete mixing, filtering, and local equality. It has been shown that each of the classical and fully quantum theories is singled out by an additional postulate.
Cite
@article{arxiv.1910.02649,
title = {Derivation of quantum theory with superselection rules},
author = {Kenji Nakahira},
journal= {arXiv preprint arXiv:1910.02649},
year = {2026}
}