Year: 2026
Type: preprint
Abstract: We consider the effect of relativistic principles on the structure of the local evolutions of non-factor quantum systems such as those which naturally arise in quantum spacetimes and causal structures. Generalising a former result that had been given for factor systems, we show that any evolution which can be applied locally on a direct sum of factor systems and without producing superluminal signals must be linear, unitary, and respect the block decomposition of the system.
Source: arXiv (Cornell University)
Authors: Mestoudjian, Octave, Wilson, Matt
Language: English
Subfield: Mathematical Physics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
Awards: G1693829329, Etude de la pile quantique : Algorithmes, modèles de calcul et simulation pour l’informatique quantique, DTP 2224 University College London, Initiative Nationale Hybride HPC Quantique – R&D et Support des communautés, Initiative Nationale Hybride HPC Quantique - Acquisition, Taming Quantum Causality, G7080048889, The Quantum Information Structure of Spacetime (QISS), Second Phase
OpenAlex ID: W7214649158