Frame dependence of Kochen-Specker contextuality for relativistic spin systems
The study investigates whether Kochen-Specker contextuality, which relates to measurement outcomes depending on the measurement context, remains frame-invariant when applied to relativistic spin systems. The finding is that while it holds for full quantum states including momentum, restricting the analysis only to spin degrees of freedom causes contextuality to become frame-dependent due to how boosts mix spin and momentum.