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Derivation of quantum theory with superselection rules
Kenji Nakahira·October 7, 2019·DOI: 10.1103/PhysRevA.101.022104
Quantum Physics
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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.