Answers are grounded in this paper and cite their sources.
Every good quantum error-correcting code discovered thus far, such as those known as ``stabilizer'' or ``additive'' codes, has had the structure of an eigenspace of an Abelian group generated by tensor products of Pauli matrices. In this Letter we present the first example of a code that is better than any code of this type. It encodes six states in five qubits and can correct the erasure of any single qubit.
No takes yet. Share an insight, caveat, or question.
Rains et al. (1997) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: