Benchmarking variational quantum simulation against an exact solution Article Swipe
Implementing variational quantum algorithms with noisy intermediate-scale quantum machines of up to a hundred of qubits is nowadays considered as one of the most promising routes towards achieving quantum practical advantage. In multiqubit circuits, running advanced quantum algorithms is hampered by the noise inherent to quantum gates which distances us from the idea of universal quantum computing. Basing on a one-dimensional quantum spin chain with competing symmetric and asymmetric pairwise exchange interactions herein, we discuss capabilities of quantum algorithms with special attention paid to hardware-efficient variational eigensolver. A delicate interplay between magnetic interactions allows one to stabilize a chiral state that destroys homogeneity of magnetic ordering, making thus this solution to be highly entangled. Quantifying entanglement in terms of quantum concurrence, we argue that, while being capable of correctly reproducing a uniform magnetic configuration, variational ansatz is not able to provide a detailed description to a chiral magnetic background. The latter naturally limits application range of variational quantum computing to solve quantum simulation tasks.
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Metadata
- Type
- preprint
- Language
- en
- Landing Page
- https://arxiv.org/abs/2105.06208v1
- OA Status
- green
- Cited By
- 3
- Related Works
- 20
- OpenAlex ID
- https://openalex.org/W3163792723
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3163792723Canonical identifier for this work in OpenAlex
- Title
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Benchmarking variational quantum simulation against an exact solutionWork title
- Type
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preprintOpenAlex work type
- Language
-
enPrimary language
- Publication year
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2021Year of publication
- Publication date
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2021-05-13Full publication date if available
- Authors
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Andrey Kardashin, A. A. Pervishko, Jacob Biamonte, Dmitry YudinList of authors in order
- Landing page
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https://arxiv.org/abs/2105.06208v1Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
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https://arxiv.org/abs/2105.06208v1Direct OA link when available
- Concepts
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Quantum, Quantum algorithm, Quantum computer, Quantum entanglement, Qubit, Computer science, Ansatz, Quantum network, Quantum technology, Quantum mechanics, Physics, Topology (electrical circuits), Statistical physics, Open quantum system, Mathematics, CombinatoricsTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
3Total citation count in OpenAlex
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2022: 2, 2021: 1Per-year citation counts (last 5 years)
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20Other works algorithmically related by OpenAlex
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