Quantum Foundations

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3 domain-specific abstractions whose origin domain is Quantum Foundations.

• Einselection — Environment-induced superselection, the decoherence process by which system–environment interaction preferentially preserves robust pointer states and suppresses observable interference between them.
• KCBS pentagram — A five-cycle contextuality scenario whose compatible measurements violate a noncontextual hidden-variable inequality in a three-level quantum system.
• Quantum logic — A nonclassical propositional structure modeled on the lattice of closed subspaces or projection operators associated with quantum measurements.