Generation of Pseudo-Random Quantum States on Actual Quantum Processors
The generation of a large amount of entanglement is a necessary condition for a quantum computer to achieve quantum advantage. In this paper, we propose a method to efficiently generate pseudo-random quantum states, for which the degree of multipartite entanglement is nearly maximal. We argue that t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Entropy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1099-4300/25/4/607 |
| _version_ | 1827745128634122240 |
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| author | Gabriele Cenedese Maria Bondani Dario Rosa Giuliano Benenti |
| author_facet | Gabriele Cenedese Maria Bondani Dario Rosa Giuliano Benenti |
| author_sort | Gabriele Cenedese |
| collection | DOAJ |
| description | The generation of a large amount of entanglement is a necessary condition for a quantum computer to achieve quantum advantage. In this paper, we propose a method to efficiently generate pseudo-random quantum states, for which the degree of multipartite entanglement is nearly maximal. We argue that the method is optimal, and use it to benchmark actual superconducting (IBM’s <i>ibm_lagos</i>) and ion trap (IonQ’s <i>Harmony</i>) quantum processors. Despite the fact that <i>ibm_lagos</i> has lower single-qubit and two-qubit error rates, the overall performance of <i>Harmony</i> is better thanks to its low error rate in state preparation and measurement and to the all-to-all connectivity of qubits. Our result highlights the relevance of the qubits network architecture to generate highly entangled states. |
| first_indexed | 2024-03-11T05:02:43Z |
| format | Article |
| id | doaj.art-0ede7a9303094a72ab3c78352169b690 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-11T05:02:43Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-0ede7a9303094a72ab3c78352169b6902023-11-17T19:08:28ZengMDPI AGEntropy1099-43002023-04-0125460710.3390/e25040607Generation of Pseudo-Random Quantum States on Actual Quantum ProcessorsGabriele Cenedese0Maria Bondani1Dario Rosa2Giuliano Benenti3Center 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, ItalyCenter for Theoretical Physics of Complex Systems, Institute for Basic Science (IBS), Daejeon 34126, Republic of KoreaCenter for Nonlinear and Complex Systems, Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, ItalyThe generation of a large amount of entanglement is a necessary condition for a quantum computer to achieve quantum advantage. In this paper, we propose a method to efficiently generate pseudo-random quantum states, for which the degree of multipartite entanglement is nearly maximal. We argue that the method is optimal, and use it to benchmark actual superconducting (IBM’s <i>ibm_lagos</i>) and ion trap (IonQ’s <i>Harmony</i>) quantum processors. Despite the fact that <i>ibm_lagos</i> has lower single-qubit and two-qubit error rates, the overall performance of <i>Harmony</i> is better thanks to its low error rate in state preparation and measurement and to the all-to-all connectivity of qubits. Our result highlights the relevance of the qubits network architecture to generate highly entangled states.https://www.mdpi.com/1099-4300/25/4/607quantum computingNISQ devicesrandom quantum circuits |
| spellingShingle | Gabriele Cenedese Maria Bondani Dario Rosa Giuliano Benenti Generation of Pseudo-Random Quantum States on Actual Quantum Processors Entropy quantum computing NISQ devices random quantum circuits |
| title | Generation of Pseudo-Random Quantum States on Actual Quantum Processors |
| title_full | Generation of Pseudo-Random Quantum States on Actual Quantum Processors |
| title_fullStr | Generation of Pseudo-Random Quantum States on Actual Quantum Processors |
| title_full_unstemmed | Generation of Pseudo-Random Quantum States on Actual Quantum Processors |
| title_short | Generation of Pseudo-Random Quantum States on Actual Quantum Processors |
| title_sort | generation of pseudo random quantum states on actual quantum processors |
| topic | quantum computing NISQ devices random quantum circuits |
| url | https://www.mdpi.com/1099-4300/25/4/607 |
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