Results 71 to 80 of about 213,013 (217)

Practical and scalable decoder for topological quantum error correction with an Ising machine

open access: yesPhysical Review Research, 2022
Quantum error correction is one of the most important milestones for the realization of large-scale quantum computation. To achieve this, it is essential not only to integrate a large number of qubits with high fidelity but also to build a scalable ...
Jun Fujisaki   +3 more
doaj   +1 more source

A simple comparative analysis of exact and approximate quantum error correction

open access: yes, 2014
We present a comparative analysis of exact and approximate quantum error correction by means of simple unabridged analytical computations. For the sake of clarity, using primitive quantum codes, we study the exact and approximate error correction of the ...
Cafaro, Carlo, van Loock, Peter
core   +1 more source

A Unified and Generalized Approach to Quantum Error Correction

open access: yes, 2004
We present a unified approach to quantum error correction, called operator quantum error correction. This scheme relies on a generalized notion of noiseless subsystems that is not restricted to the commutant of the interaction algebra.
David Kribs   +4 more
core   +1 more source

Constructions of k-uniform and absolutely maximally entangled states beyond maximum distance codes

open access: yesPhysical Review Research, 2020
Pure multipartite quantum states of n parties and local dimension q are called k-uniform if all reductions to k parties are maximally mixed. These states are relevant for our understanding of multipartite entanglement, quantum information protocols, and ...
Zahra Raissi   +3 more
doaj   +1 more source

Numerical simulation of information recovery in quantum computers

open access: yes, 2002
Decoherence is the main problem to be solved before quantum computers can be built. To control decoherence, it is possible to use error correction methods, but these methods are themselves noisy quantum computation processes.
A. L. Sanz   +16 more
core   +1 more source

Encoding Error Correction in an Integrated Photonic Chip

open access: yesPRX Quantum, 2023
Integrated photonics provides a versatile platform for encoding and processing quantum information. However, the encoded quantum states are sensitive to noise, which limits their capability to perform complicated quantum computations. Here, we use a five-
Hui Zhang   +9 more
doaj   +1 more source

Hamiltonian learning for quantum error correction [PDF]

open access: yesPhysical Review Research, 2019
The efficient validation of quantum devices is critical for emerging technological applications. In a wide class of use-cases the precise engineering of a Hamiltonian is required both for the implementation of gate-based quantum information processing as well as for reliable quantum memories.
Valenti, Agnes   +3 more
openaire   +8 more sources

Sparse Graph Codes for Quantum Error-Correction

open access: yes, 2003
We present sparse graph codes appropriate for use in quantum error-correction. Quantum error-correcting codes based on sparse graphs are of interest for three reasons.
MacKay, David J. C.   +2 more
core   +9 more sources

Measure of decoherence in quantum error correction for solid-state quantum computing

open access: yes, 2012
We considered the interaction of semiconductor quantum register with noisy environment leading to various types of qubit errors. We analysed both phase and amplitude decays during the process of electron-phonon interaction.
Fedichkin, Leonid E.   +1 more
core   +1 more source

Quantum error correction via codes over GF(4) [PDF]

open access: green, 1998
A.R. Calderbank   +3 more
openalex   +2 more sources

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