Correcting Coherent Errors by Random Operation on Actual Quantum Hardware
Characterizing and mitigating errors in current noisy intermediate-scale devices is important to improve the performance of the next generation of quantum hardware. To investigate the importance of the different noise mechanisms affecting quantum computation, we performed a full quantum process tomo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Entropy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1099-4300/25/2/324 |
| _version_ | 1797621103541092352 |
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| author | Gabriele Cenedese Giuliano Benenti Maria Bondani |
| author_facet | Gabriele Cenedese Giuliano Benenti Maria Bondani |
| author_sort | Gabriele Cenedese |
| collection | DOAJ |
| description | Characterizing and mitigating errors in current noisy intermediate-scale devices is important to improve the performance of the next generation of quantum hardware. To investigate the importance of the different noise mechanisms affecting quantum computation, we performed a full quantum process tomography of single qubits in a real quantum processor in which echo experiments are implemented. In addition to the sources of error already included in the standard models, the obtained results show the dominant role of coherent errors, which we practically corrected by inserting random single-qubit unitaries in the quantum circuit, significantly increasing the circuit length over which quantum computations on actual quantum hardware produce reliable results. |
| first_indexed | 2024-03-11T08:52:00Z |
| format | Article |
| id | doaj.art-9424ddd77e8942b8b7081f4da2d00b7a |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-11T08:52:00Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-9424ddd77e8942b8b7081f4da2d00b7a2023-11-16T20:23:55ZengMDPI AGEntropy1099-43002023-02-0125232410.3390/e25020324Correcting Coherent Errors by Random Operation on Actual Quantum HardwareGabriele Cenedese0Giuliano Benenti1Maria Bondani2Center for Nonlinear and Complex Systems, Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, ItalyCenter for Nonlinear and Complex Systems, Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, ItalyIstituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Via Valleggio 11, 22100 Como, ItalyCharacterizing and mitigating errors in current noisy intermediate-scale devices is important to improve the performance of the next generation of quantum hardware. To investigate the importance of the different noise mechanisms affecting quantum computation, we performed a full quantum process tomography of single qubits in a real quantum processor in which echo experiments are implemented. In addition to the sources of error already included in the standard models, the obtained results show the dominant role of coherent errors, which we practically corrected by inserting random single-qubit unitaries in the quantum circuit, significantly increasing the circuit length over which quantum computations on actual quantum hardware produce reliable results.https://www.mdpi.com/1099-4300/25/2/324quantum computingNISQ devicesquantum error correctionrandom quantum circuits |
| spellingShingle | Gabriele Cenedese Giuliano Benenti Maria Bondani Correcting Coherent Errors by Random Operation on Actual Quantum Hardware Entropy quantum computing NISQ devices quantum error correction random quantum circuits |
| title | Correcting Coherent Errors by Random Operation on Actual Quantum Hardware |
| title_full | Correcting Coherent Errors by Random Operation on Actual Quantum Hardware |
| title_fullStr | Correcting Coherent Errors by Random Operation on Actual Quantum Hardware |
| title_full_unstemmed | Correcting Coherent Errors by Random Operation on Actual Quantum Hardware |
| title_short | Correcting Coherent Errors by Random Operation on Actual Quantum Hardware |
| title_sort | correcting coherent errors by random operation on actual quantum hardware |
| topic | quantum computing NISQ devices quantum error correction random quantum circuits |
| url | https://www.mdpi.com/1099-4300/25/2/324 |
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