Correlated errors in quantum-error corrections [PDF]
Physical Review A, 2001 We show that errors are not generated correlatedly provided that quantum bits do not directly interact with (or couple to) each other. Generally, this no-qubits-interaction condition is assumed except for the case where two-qubit gate operation is being performed.
Hwang, W. Y., Ahn, D., Hwang, S. W.
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Adaptive surface code for quantum error correction in the presence of temporary or permanent defects [PDF]
Quantum, 2022 Whether it is at the fabrication stage or during the course of the quantum computation, e.g. because of high-energy events like cosmic rays, the qubits constituting an error correcting code may be rendered inoperable.
A. Siegel +3 more
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Correcting Quantum Errors with Entanglement [PDF]
Science, 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.
Brun, Todd +2 more
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Transmon qubit readout fidelity at the threshold for quantum error correction without a quantum-limited amplifier [PDF]
npj Quantum Information, 2022 High-fidelity and rapid readout of a qubit state is key to quantum computing and communication, and it is a prerequisite for quantum error correction. We present a readout scheme for superconducting qubits that combines two microwave techniques: applying
L. Chen +19 more
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Overcoming leakage in quantum error correction [PDF]
Nature Physics, 2022 The leakage of quantum information out of the two computational states of a qubit into other energy states represents a major challenge for quantum error correction.
K. Miao +116 more
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A Novel Approach for Asymmetric Quantum Error Correction With Syndrome Measurement
IEEE Access, 2022 Most of the quantum error correction methods are symmetric. Symmetric methods are implemented by considering the amplitude of bit flip(X) and phase flip(Z) errors as same.
Mummadi Swathi, Bhawana Rudra
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Neural-Network Decoders for Quantum Error Correction Using Surface Codes: A Space Exploration of the Hardware Cost-Performance Tradeoffs [PDF]
IEEE Transactions on Quantum Engineering, 2022 Quantum error correction (QEC) is required in quantum computers to mitigate the effect of errors on physical qubits. When adopting a QEC scheme based on surface codes, error decoding is the most computationally expensive task in the classical electronic ...
Ramon W. J. Overwater +2 more
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Quantum error correction of observables [PDF]
Physical Review A, 2007 22 pages, 1 figure, preprint ...
Beny, Cedric +2 more
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IEEE Access, 2020 Quantum information is prone to suffer from errors caused by the so-called decoherence, which describes the loss in coherence of quantum states associated to their interactions with the surrounding environment.
Josu Etxezarreta Martinez +3 more
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Quantum Error Correction with Metastable States of Trapped Ions Using Erasure Conversion [PDF]
PRX Quantum, 2022 Erasures, or errors with known locations, are a more favorable type of error for quantum error-correcting codes than Pauli errors. Converting physical noise into erasures can significantly improve the performance of quantum error correction.
Mingyu Kang, W. C. Campbell, K. Brown
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