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quant-ph2025
Quantum Advantage in Identifying the Parity of Permutations with Certainty
Arnau Diebra, Santiago Llorens, David González-Lociga +4
We establish a sharp quantum advantage in determining the parity (even/odd) of an unknown permutation applied to any number of particles. Classically, this is impossible…
quant-ph2025★ 1 cited
Quantum state exclusion for group-generated ensembles of pure states
Arnau Diebra, Santiago Llorens, Emili Bagan +2
Quantum state exclusion is the task of determining which states from a given set a system was not prepared in. We provide a complete solution to optimal quantum state exclusion for…