Results 61 to 70 of about 30,172 (191)

Mitigating errors in logical qubits

Communications Physics
Quantum error correcting codes can enable large quantum computations provided physical error rates are sufficiently low. We combine post-selection with surface code error correction through the use of exclusive decoders, which abort on decoding instances
Samuel C. Smith, Benjamin J. Brown, Stephen D. Bartlett   +2 more
doaj   +1 more source

Undetected error probability and throughput analysis of a concatenated coding scheme [PDF]

The performance of a proposed concatenated coding scheme for error control on a NASA telecommand system is analyzed. In this scheme, the inner code is a distance-4 Hamming code used for both error correction and error detection.
Costello, D. J.
core   +1 more source

Probability of undetected error after decoding for a concatenated coding scheme [PDF]

A concatenated coding scheme for error control in data communications is analyzed. In this scheme, the inner code is used for both error correction and detection, however the outer code is used only for error detection.
Costello, D. J., Jr., Lin, S.
core   +1 more source

Fault-tolerant operation and materials science with neutral atom logical qubits

npj Quantum Information
We report on the fault-tolerant operation of logical qubits on a neutral atom quantum computer, with logical performance surpassing physical performance for multiple circuits including Bell state preparation (12x error reduction), random circuits (15x ...
Woo Chang Chung, Daniel C. Cole, Pranav Gokhale, Eric B. Jones, Kevin W. Kuper, David Mason, Victory Omole, Alexander G. Radnaev, Rich Rines, Mariesa H. Teo, Matt J. Bedalov, Matt Blakely, Peter D. Buttler, Caitlin Carnahan, Frederic T. Chong, Palash Goiporia, Bettina Heim, Garrett T. Hickman, Ryan A. Jones, Pradnya Khalate, Jin-Sung Kim, Martin T. Lichtman, Stephanie Lee, Nathan A. Neff-Mallon, Thomas W. Noel, Mark Saffman, Efrat Shabtai, Bharath Thotakura, Teague Tomesh, Angela K. Tucker   +29 more
doaj   +1 more source

Restart Mechanisms for the Successive-Cancellation List-Flip Decoding of Polar Codes

Entropy
Polar codes concatenated with a cyclic redundancy check (CRC) code have been selected in the 5G standard with the successive-cancellation list (SCL) of list size L = 8 as the baseline algorithm.
Charles Pillet, Ilshat Sagitov, Alexios Balatsoukas-Stimming, Pascal Giard   +3 more
doaj   +1 more source

Quantum information density scaling and qubit operation time constraints of CMOS silicon-based quantum computer architectures

npj Quantum Information, 2017
Even the quantum simulation of an apparently simple molecule such as Fe2S2 requires a considerable number of qubits of the order of 106, while more complex molecules such as alanine (C3H7NO2) require about a hundred times more.
Davide Rotta, Fabio Sebastiano, Edoardo Charbon, Enrico Prati   +3 more
doaj   +1 more source

Quantum Error Correction with the GKP Code and Concatenation with Stabilizer Codes

, 2019
50 pages, Master Thesis, RWTH-Aachen ...
openaire   +2 more sources

Concatenated Turbo/LDPC codes for deep space communications: performance and implementation [PDF]

, 2013
Deep space communications require error correction codes able to reach extremely low bit-error-rates, possibly with a steep waterfall region and without error floor. Several schemes have been proposed in the literature to achieve these goals.
Condo, Carlo
core  

Trellis Decoding for Qudit Stabilizer Codes and Its Application to Qubit Topological Codes

IEEE Transactions on Quantum Engineering
Trellis decoders are a general decoding technique first applied to qubit-based quantum error correction codes by Ollivier and Tillich in 2006. Here, we improve the scalability and practicality of their theory, show that it has strong structure, extend ...
Eric Sabo, Arun B. Aloshious, Kenneth R. Brown   +2 more
doaj   +1 more source