Results 31 to 40 of about 55,151 (279)

Near-Optimal Covariant Quantum Error-Correcting Codes from Random Unitaries with Symmetries

open access: yesPRX Quantum, 2022
Quantum error correction and symmetries play central roles in quantum information science and physics. It is known that quantum error-correcting codes that obey (are covariant with respect to) continuous symmetries in a certain sense cannot correct ...
Linghang Kong, Zi-Wen Liu
doaj   +1 more source

Pauli channels can be estimated from syndrome measurements in quantum error correction [PDF]

open access: yesQuantum, 2022
The performance of quantum error correction can be significantly improved if detailed information about the noise is available, allowing to optimize both codes and decoders. It has been proposed to estimate error rates from the syndrome measurements done
Thomas Wagner   +3 more
doaj   +1 more source

An efficient simulation of quantum error correction codes

open access: yesAlexandria Engineering Journal, 2018
The QCAD which has been technologically advanced during last few years to support basic transformations, simulating multi-dimensional quantum devices and circuits.
R. Padma Priya, A. Baradeswaran
doaj   +1 more source

Effectiveness of the syndrome extraction circuit with flag qubits on IBM quantum hardware [PDF]

open access: yesQuantum
Large-scale quantum circuits are required to exploit the advantages of quantum computers. Despite significant advancements in quantum hardware, scalability remains a challenge, with errors accumulating as more qubits and gates are added. To overcome this
Younghun Kim   +4 more
doaj   +1 more source

Quantum Computing with Rotation-Symmetric Bosonic Codes

open access: yesPhysical Review X, 2020
Bosonic rotation codes, introduced here, are a broad class of bosonic error-correcting codes based on phase-space rotation symmetry. We present a universal quantum computing scheme applicable to a subset of this class—number-phase codes—which includes ...
Arne L. Grimsmo   +2 more
doaj   +1 more source

Quantum Error Correction of Time-Correlated Errors [PDF]

open access: yes, 2006
The complexity of the error correction circuitry forces us to design quantum error correction codes capable of correcting a single error per error correction cycle. Yet, time-correlated error are common for physical implementations of quantum systems; an
Lu, Feng, Marinescu, Dan C.
core   +2 more sources

Quantum variational learning for quantum error-correcting codes

open access: yesQuantum, 2022
Quantum error correction is believed to be a necessity for large-scale fault-tolerant quantum computation. In the past two decades, various constructions of quantum error-correcting codes (QECCs) have been developed, leading to many good code families. However, the majority of these codes are not suitable for near-term quantum devices.
Chenfeng Cao   +4 more
openaire   +4 more sources

Quantum error correction for long chains of trapped ions [PDF]

open access: yesQuantum
We propose a model for quantum computing with long chains of trapped ions and we design quantum error correction schemes for this model. The main components of a quantum error correction scheme are the quantum code and a quantum circuit called the ...
Min Ye, Nicolas Delfosse
doaj   +1 more source

Quantum Error Correction and Fault-Tolerance

open access: yes, 2005
I give an overview of the basic concepts behind quantum error correction and quantum fault tolerance. This includes the quantum error correction conditions, stabilizer codes, CSS codes, transversal gates, fault-tolerant error correction, and the ...
Bennett   +8 more
core   +2 more sources

Quantum Error Correction for Quantum Memories

open access: yes, 2015
Active quantum error correction using qubit stabilizer codes has emerged as a promising, but experimentally challenging, engineering program for building a universal quantum computer.
Terhal, Barbara M.
core   +1 more source

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