Diamond-shaped quantum circuit for real-time quantum dynamics in one dimension

Miyakoshi, Shohei; Sugimoto, Takanori; Shirakawa, Tomonori et al.

Physical Review Research, 2024, 6, 043318

Number of Access:634（2025-09-12 06:38 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100605

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Title
Diamond-shaped quantum circuit for real-time quantum dynamics in one dimension
Creator
NRID
1000040994041 1000040994041
researchmap permalink
shohei_miyakoshi shohei_miyakoshi
CreatorName
Miyakoshi, Shohei
NRID
1000070735662 1000070735662
ORCID
0000-0001-7588-5403 0000-0001-7588-5403
researchmap permalink
sugimoto.takanori sugimoto.takanori
CreatorName
Sugimoto, Takanori
NRID
1000040571237 1000040571237
CreatorName
Shirakawa, Tomonori
NRID
1000070532141 1000070532141
CreatorName
Yunoki, Seiji
NRID
1000040632758 1000040632758
ORCID
0000-0001-9561-0933 0000-0001-9561-0933
researchmap permalink
hiroshi_ueda hiroshi_ueda
Scopus Author ID
57210940815 57210940815
CreatorName
Ueda, Hiroshi
Description
Miyakoshi S., Sugimoto T., Shirakawa T., et al. Diamond-shaped quantum circuit for real-time quantum dynamics in one dimension. Physical Review Research 6, 043318 (2024); https://doi.org/10.1103/PhysRevResearch.6.043318.
Abstract
In recent years, quantum computing has evolved as an exciting frontier, with the development of numerous algorithms dedicated to constructing quantum circuits that adeptly represent quantum many-body states. However, this domain remains in its early stages and requires further refinement to better understand the effective construction of highly entangled quantum states within quantum circuits. Here, we demonstrate that quantum many-body states can be universally represented using a quantum circuit comprising multiqubit gates. Furthermore, we evaluate the efficiency of a quantum circuit constructed with two-qubit gates in quench dynamics for the transverse-field Ising model. In this specific model, despite the initial state being classical without entanglement, it undergoes long-time evolution, eventually leading to a highly entangled quantum state. Our results reveal that a diamond-shaped quantum circuit, designed to approximate the multiqubit gate-based quantum circuit, remarkably excels in accurately representing the long-time dynamics of the system. Moreover, the diamond-shaped circuit follows the volume law behavior in entanglement entropy, offering a significant advantage over alternative quantum circuit constructions employing two-qubit gates.
Publisher
American Physical Society
Source Title
Physical Review Research
Volume (Issue)
6
Page
043318
Date of Issued
2024-10-01
Language
English
Handle URL
https://hdl.handle.net/11094/100605
PISSN
26431564
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1103/PhysRevResearch.6.043318
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
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Version of Record
Category
学術雑誌論文 Journal Article