In a logical qubit, information is stored redundantly. But now that scientists have shown that they can keep errors under control, he says, “there’s nothing fundamentally stopping us to build a useful quantum computer.” To do complex calculations, scientists will have to dramatically scale up the number of qubits in the machines. Still, that path remains a long one, Hensinger says. “This is a key demonstration on the path to build a large-scale quantum computer,” says quantum physicist Winfried Hensinger of the University of Sussex in Brighton, England, who was not involved in the new study. Scientists used nine qubits to make a single, improved qubit called a logical qubit, which, unlike the individual qubits from which it was made, can be probed to check for mistakes. But without a mechanism for fixing the computers’ mistakes, the answers that a quantum computer spits out could be gobbledygook ( SN: 6/22/20).Ĭombining the power of multiple qubits into one can solve the error woes, researchers report October 4 in Nature. The fragile quantum bits, or qubits, that make up the machines are notoriously error-prone, but now scientists have shown that they can fix the flubs.Ĭomputers that harness the rules of quantum mechanics show promise for making calculations far out of reach for standard computers ( SN: 6/29/17). Ghulam Mohammad completed MSc from Aligarh Muslim University, Aligarh in the year 2011.Mistakes happen - especially in quantum computers. His research interests include ring theory, derivations on rings, near-rings and Banach algebra and algebraic coding theory. Biographical notes: Mohammad Ashraf completed his PhD in Ring Theory from Aligarh Muslim University in the year 1986 and after completing PhD, joined the Department of Mathematics, A.M.U., Aligarh in the capacity of a Lecturer and got elevated to the post of a Reader in the year 1997, and finally became a full-fledged Professor in the year 2005. (2015) `Construction of quantum codes from cyclic codes over Fp + vFp ', Int. Reference to this paper should be made as follows: Ashraf, M. Keywords: linear codes self-orthogonal codes cyclic codes quantum codes. Finally, we derive the parameters of associated quantum error-correcting codes. We give a method to obtain self-orthogonal codes over Fp as Gray images of linear and cyclic codes over the ring R. In this paper, we study quantum error-correcting codes from cyclic codes over the ring R, where R is a non-chain extension of Fp. International Journal of Information and Coding Theory Inderscience Publishers Ghulam Mohammad completed MSc from Aligarh Muslim University, Aligarh in the year 2011. Construction of quantum codes from cyclic codes over F p + vF p Construction of quantum codes from cyclic codes over F p + vF p