An error correction model is derived from a stochastic dynamic programming problem incorporating rational expectations. A parametric restriction is derived that ...

Using surface code for error-correction introduces enormous overhead requirements for systems at scale – millions of physical qubits are needed to collectively act as the thousands of logical ...

Noisy but nice: close up of part of IBM’s Eagle quantum processor, which was used in this latest research. (Courtesy: IBM) A 127-qubit quantum processor has been used by an international team of ...