Classical purification of noisy Pauli-product states recovers magic and entanglement, with a noise floor that depends on when those resources are generated and on which circuit state is chosen.
Purity, defined as trρ2, measures the degree of mixedness of a quantum state
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Offline recovery of magic and entanglement from noisy Pauli product states
Classical purification of noisy Pauli-product states recovers magic and entanglement, with a noise floor that depends on when those resources are generated and on which circuit state is chosen.