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quant-ph2025
Frame dependence of Spekkens' contextuality for relativistic spin systems
Ruben Campos Delgado
We show that the operational definition of contextuality introduced by Spekkens is, in general, not Lorentz invariant. Specifically, we consider an explicit example with particle s…
quant-ph2025
Ruling out nonlinear modifications of quantum theory with contextuality
Ruben Campos Delgado, Martin Plávala
Nonlinear modifications of quantum theory are considered potential candidates for the theory of quantum gravity, with the intuitive argument that since Einstein field equations are…