Year: 2024
Type: article
Abstract: We develop the theory of Wigner representations for general probabilistic theories (GPTs), a large class of operational theories that include both classical and quantum theory. The Wigner representations that we introduce are a natural way to describe the theory in terms of some fixed observables; these observables are often picked to be position and momentum or spin observables. This allows us to introduce symmetries which transform the outcomes of the observables used to construct the Wigner representation; we obtain several results for when these symmetries are well defined or when they uniquely specify the Wigner representation.
Authors: Ties-A Ohst, Martin Plávala
Institutions: University of Siegen, Leibniz University Hannover
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: Verbundprojekt: Quantennetzwerke: Korrelationen und Kommunikation - QuKuK -, Teilvorhaben: Netzwerkstrukturen und Quantenzustände, G196870976, Charakterisierung hochdimensionaler Verschränkung und Kohärenz, G3017367642, G3663324400, G5065802030, G6509746804, G7237488554, G7674023514, Aspekte des Quantum Steerings
OpenAlex ID: W4403014136