Results 21 to 30 of about 213,013 (217)

Flag fault-tolerant error correction with arbitrary distance codes [PDF]

open access: yesQuantum, 2018
In this paper we introduce a general fault-tolerant quantum error correction protocol using flag circuits for measuring stabilizers of arbitrary distance codes. In addition to extending flag error correction beyond distance-three codes for the first time,
Christopher Chamberland   +1 more
doaj   +4 more sources

Topological Code Autotune

open access: yesPhysical Review X, 2012
Many quantum systems are being investigated in the hope of building a large-scale quantum computer. All of these systems suffer from decoherence, resulting in errors during the execution of quantum gates. Quantum error correction enables reliable quantum
Austin G. Fowler   +3 more
doaj   +3 more sources

Approaches to Quantum Error Correction [PDF]

open access: green, 2006
29 pages, 5 figures, survey written for Poincare seminar lecture 19 Nov. 2005. Bookchapter in "Quantum Decoherence", Poincare seminar 2005, Progress in Mathematical Physics series, Birhaeuser, p.
Julia Kempe
  +7 more sources

Quantum error correction for continuously detected errors [PDF]

open access: greenPhysical Review A, 2003
We show that quantum feedback control can be used as a quantum error correction process for errors induced by weak continuous measurement. In particular, when the error model is restricted to one, perfectly measured, error channel per physical qubit, quantum feedback can act to perfectly protect a stabilizer codespace. Using the stabilizer formalism we
Ahn, C., Wiseman, H. M., Milburn, G. J.
openaire   +7 more sources

Quantum error correction for beginners [PDF]

open access: yesReports on Progress in Physics, 2013
35 pages, 25 Figures, Published ...
William J. Munro   +2 more
openaire   +4 more sources

Correcting Quantum Errors with Entanglement [PDF]

open access: yesScience, 2006
We show how entanglement shared between encoder and decoder can simplify the theory of quantum error correction. The entanglement-assisted quantum codes we describe do not require the dual-containing constraint necessary for standard quantum error–correcting codes, thus allowing us to “quantize” all of classical linear coding theory.
Min-Hsiu Hsieh   +2 more
openaire   +4 more sources

Quantum Error Correction for Communication [PDF]

open access: yesPhysical Review Letters, 1996
We show how procedures which can correct phase and amplitude errors are in themselves sufficient to correct errors due to quantum entanglement, generalizing earlier results. We specify general criteria for quantum error correction, introduce quantum versions of the Hamming and the Gilbert-Varshamov bounds, and comment on the practical implementations ...
A. EKERT, MACCHIAVELLO, CHIARA
openaire   +2 more sources

Quantum Error Correction

open access: yes, 2020
Quantum error correction is a set of methods to protect quantum information—that is, quantum states—from unwanted environmental interactions (decoherence) and other forms of noise. The information is stored in a quantum error-correcting code, which is a subspace in a larger Hilbert space.
Todd A. Brun, Daniel A. Lidar
openaire   +5 more sources

Motional quantum error correction [PDF]

open access: yesJournal of Modern Optics, 2000
We examine the dynamics of a qubit stored in the motional degrees of freedom of an ultra-cold ion in an ion trap which is subject to the decoherence effects of a finite-temperature bath. We discover an encoding of the qubit, in two of the motional modes of the ion, which is stable against the occurrence of either none or one quantum jump.
J. Steinbach, Jason Twamley
openaire   +3 more sources

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