Non-factor quantum dynamics and relativity

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.

arXiv:2609.30942 [quant-ph]

(or arXiv:2609.30942v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2609.30942 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

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