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Demonstration of a quantum error detection code using a square lattice of four superconducting qubits
The ability to detect and deal with errors when manipulating quantum systems is a fundamental requirement for fault-tolerant quantum computing. Unlike classical bits that are subject to only digital bit-flip errors, quantum bits are susceptible to a much larger spectrum of errors, for which any comp...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4421819/ https://www.ncbi.nlm.nih.gov/pubmed/25923200 http://dx.doi.org/10.1038/ncomms7979 |
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author | Córcoles, A.D. Magesan, Easwar Srinivasan, Srikanth J. Cross, Andrew W. Steffen, M. Gambetta, Jay M. Chow, Jerry M. |
author_facet | Córcoles, A.D. Magesan, Easwar Srinivasan, Srikanth J. Cross, Andrew W. Steffen, M. Gambetta, Jay M. Chow, Jerry M. |
author_sort | Córcoles, A.D. |
collection | PubMed |
description | The ability to detect and deal with errors when manipulating quantum systems is a fundamental requirement for fault-tolerant quantum computing. Unlike classical bits that are subject to only digital bit-flip errors, quantum bits are susceptible to a much larger spectrum of errors, for which any complete quantum error-correcting code must account. Whilst classical bit-flip detection can be realized via a linear array of qubits, a general fault-tolerant quantum error-correcting code requires extending into a higher-dimensional lattice. Here we present a quantum error detection protocol on a two-by-two planar lattice of superconducting qubits. The protocol detects an arbitrary quantum error on an encoded two-qubit entangled state via quantum non-demolition parity measurements on another pair of error syndrome qubits. This result represents a building block towards larger lattices amenable to fault-tolerant quantum error correction architectures such as the surface code. |
format | Online Article Text |
id | pubmed-4421819 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44218192015-05-20 Demonstration of a quantum error detection code using a square lattice of four superconducting qubits Córcoles, A.D. Magesan, Easwar Srinivasan, Srikanth J. Cross, Andrew W. Steffen, M. Gambetta, Jay M. Chow, Jerry M. Nat Commun Article The ability to detect and deal with errors when manipulating quantum systems is a fundamental requirement for fault-tolerant quantum computing. Unlike classical bits that are subject to only digital bit-flip errors, quantum bits are susceptible to a much larger spectrum of errors, for which any complete quantum error-correcting code must account. Whilst classical bit-flip detection can be realized via a linear array of qubits, a general fault-tolerant quantum error-correcting code requires extending into a higher-dimensional lattice. Here we present a quantum error detection protocol on a two-by-two planar lattice of superconducting qubits. The protocol detects an arbitrary quantum error on an encoded two-qubit entangled state via quantum non-demolition parity measurements on another pair of error syndrome qubits. This result represents a building block towards larger lattices amenable to fault-tolerant quantum error correction architectures such as the surface code. Nature Pub. Group 2015-04-29 /pmc/articles/PMC4421819/ /pubmed/25923200 http://dx.doi.org/10.1038/ncomms7979 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Córcoles, A.D. Magesan, Easwar Srinivasan, Srikanth J. Cross, Andrew W. Steffen, M. Gambetta, Jay M. Chow, Jerry M. Demonstration of a quantum error detection code using a square lattice of four superconducting qubits |
title | Demonstration of a quantum error detection code using a square lattice of four superconducting qubits |
title_full | Demonstration of a quantum error detection code using a square lattice of four superconducting qubits |
title_fullStr | Demonstration of a quantum error detection code using a square lattice of four superconducting qubits |
title_full_unstemmed | Demonstration of a quantum error detection code using a square lattice of four superconducting qubits |
title_short | Demonstration of a quantum error detection code using a square lattice of four superconducting qubits |
title_sort | demonstration of a quantum error detection code using a square lattice of four superconducting qubits |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4421819/ https://www.ncbi.nlm.nih.gov/pubmed/25923200 http://dx.doi.org/10.1038/ncomms7979 |
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