Correcting biased noise using Gottesman-Kitaev-Preskill repetition code with noisy ancilla [PDF]
Concatenation of a bosonic code with a qubit code is one of the promising ways to achieve fault-tolerant quantum computation. As one of the most important bosonic codes, Gottesman-Kitaev-Preskill (GKP) code is proposed to correct small displacement error in phase space.
arxiv
LDPC FEC Code Extension for Unequal Error Protection in DVB-T2 System: Design and Evaluation
The Digital Video Broadcasting organisation has recently introduced the second generation of terrestrial broadcast transmission standards, DVB-T2.
Lukasz Kondrad+2 more
doaj +1 more source
A Novel Error Correction Mechanism for Energy-Efficient Cyber-Physical Systems in Smart Building
Smart building is an effective solution to address the issue of energy consumption in today's cyber-physical systems (CPSs) connected world. As an important tool to collect information from a fleet of electric appliance that installed in the building ...
Ming Zhan, Jun Wu, Hong Wen, Peng Zhang
doaj +1 more source
Modeling coherent errors in quantum error correction [PDF]
Analysis of quantum error correcting codes is typically done using a stochastic, Pauli channel error model for describing the noise on physical qubits. However, it was recently found that coherent errors (systematic rotations) on physical data qubits result in both physical and logical error rates that differ significantly from those predicted by a ...
arxiv +1 more source
Error suppression via complementary gauge choices in Reed-Muller codes [PDF]
Concatenation of two quantum error correcting codes with complementary sets of transversal gates can provide a means towards universal fault-tolerant computation. We first show that it is generally preferable to choose the inner code with the higher pseudo-threshold in order to achieve lower logical failure rates.
arxiv +1 more source
Robustness of the concatenated quantum error-correction protocol against noise for channels affected by fluctuation [PDF]
In quantum error correction, the description of noise channel cannot be completely accurate, and fluctuation always appears in noise channel. It is found that when fluctuation of physical noise channel is considered, the average effective channel is dependent only on the average of physical noise channel, and the average of physical noise channel here ...
arxiv +1 more source
Error suppression and error correction in adiabatic quantum computation: non-equilibrium dynamics
While adiabatic quantum computing (AQC) has some robustness to noise and decoherence, it is widely believed that encoding, error suppression and error correction will be required to scale AQC to large problem sizes.
Mohan Sarovar, Kevin C Young
doaj +1 more source
Optimal correction of concatenated fault-tolerant quantum codes [PDF]
We present a method of concatenated quantum error correction in which improved classical processing is used with existing quantum codes and fault-tolerant circuits to more reliably correct errors. Rather than correcting each level of a concatenated code independently, our method uses information about the likelihood of errors having occurred at lower ...
arxiv +1 more source
Near-Hashing-Bound Multiple-Rate Quantum Turbo Short-Block Codes
Quantum stabilizer codes (QSCs) suffer from a low quantum coding rate since they have to recover the quantum bits (qubits) in the face of both bit-flip and phase-flip errors. In this treatise, we conceive a low-complexity concatenated quantum turbo code (
Daryus Chandra+3 more
doaj +1 more source
Generalized Concatenated Quantum Codes [PDF]
We introduce the concept of generalized concatenated quantum codes. This generalized concatenation method provides a systematical way for constructing good quantum codes, both stabilizer codes and nonadditive codes. Using this method, we construct families of new single-error-correcting nonadditive quantum codes, in both binary and nonbinary cases ...
arxiv +1 more source