2016/04/21 by Byungkyu Ahn, Ahn, Byungkyu, Jeonghwan Shin +3
Computer Science · #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum-Dot Cellular Automata
paper · pdf · doi:10.48550/arxiv.1604.06191
Quantum error correcting codes (QECCs) in quantum communi- cation systems has\nbeen known to exhibit improved performance with the use of error-free\nentanglement bits (ebits). In practical situations, ebits inevitably suffer\nfrom errors, and as a result, the error-correcting capability of the code is\ndiminished. Prior studies have proposed two different schemes as a solu- tion.\nOne uses only one QECC to correct errors on the receiver's side (i.e., Bob) and\non the sender's side (i.e., Alice). The other uses different QECCs on each\nside. In this paper, we present a method to correct errors on both sides by\nusing single nonadditive Entanglement-assisted codeword stabilized quantum\nerror correcting code(EACWS QECC). We use the property that the number of\neffective error patterns decreases as much as the number of ebits. This\nproperty results in a greater number of logical codewords using the same number\nof physical qubits.\n