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arXiv · 2609.30942

Non-factor quantum dynamics and relativity

Octave Mestoudjian·Matt Wilson
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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.

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Octave Mestoudjian, Matt Wilson. 2026-09-25. Non-factor quantum dynamics and relativity. https://arxiv.org/abs/2609.30942

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