2 papers
quant-ph2026
Polynomial-time simulation of non-Clifford quantum error correction
Serban Cercelescu, Mark Koch, Arthur Pesah
We show that every intermediate state of a broad class of non-Clifford quantum error-correction circuits is a third-order phase-polynomial state, even under stochastic Pauli noise.…
quant-ph2026
Commutation Groups and State-Independent Contextuality
Samson Abramsky, Serban-Ion Cercelescu, Carmen-Maria Constantin
We introduce an algebraic structure for studying state-independent contextuality arguments, a key form of quantum non-classicality exemplified by the well-known Peres-Mermin magic…