Clustered error correction of codeword-stabilized quantum codes.
Codeword-stabilized codes are a general class of quantum codes that includes stabilizer codes and many families of nonadditive codes with good parameters. For such a nonadditive code correcting all t-qubit errors, we propose an algorithm that employs a single measurement to test all errors located on a given set of t qubits. Compared with exhaustive error screening, this reduces the total number of measurements required for error recovery by a factor of about 3(t).
Li
Yunfan
Y
Department of Electrical Engineering, University of California, Riverside, California 92521, USA.
Dumer
Ilya
I
Pryadko
Leonid P
LP