Klassisk simulerbare kvantekretser. Fra [[Entanglement vs Magic]]-[paperet](https://arxiv.org/abs/2403.19610): > Entanglement has long stood as a central concept in quantum information, serving as a key differentiating feature between classical and quantum theories. This perspective was both enriched and challenged by the introduction of the stabilizer formalism, which identified a subset of quantum states, known as stabilizer states (and their associated circuits, termed Clifford circuits), which could be simulated efficiently using classical resources [Got98]. These classically simulable states could be highly entangled, and hence did not conform to the conventional understanding that entanglement could be the sole metric determining the degree to which a state is truly quantum. (Se også [[Kvantemagi]].) Min forståelse per i dag er at en kvantetilstand er klassisk simulerbar hvis *og bare hvis* det eksisterer en Clifford-krets som forbereder den ... men jeg er ikke helt sikker på dette (altså at implikasjonen Clifford $\rightarrow$ klassisk simulerbar går begge veier).