Evidence map›Paper›PMID 38658582›Full record

ArticleNature communications2024

Energy-efficient superparamagnetic Ising machine and its application to traveling salesman problems.

Jia Si, Shuhan Yang, Yunuo Cen, Jiaer Chen, Yingna Huang, Zhaoyang Yao, Dong-Jun Kim, Kaiming Cai, Jerald Yoo, Xuanyao Fong and 1 more

Abstract read
In one paragraph

Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

  1. Article
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  10. Metrics for spin-based computing.Nature reviews. Physics · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Jia SiDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.ORCID http://orcid.org/0000-0003-0737-4905
Shuhan YangDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
Yunuo CenDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
Jiaer ChenDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
Yingna HuangDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
Zhaoyang YaoDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
Dong-Jun KimDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
Kaiming CaiDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
Jerald YooDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.ORCID http://orcid.org/0000-0002-3150-1727
Xuanyao FongDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.ORCID http://orcid.org/0000-0001-5939-7389
Hyunsoo YangDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore. eleyang@nus.edu.sg.ORCID http://orcid.org/0000-0003-0907-2898

Funding

National Research Foundation Singapore (National Research Foundation-Prime Minister's office, Republic of Singapore) NRF-000214-00
6 · The paper itself

Abstract

The growth of artificial intelligence leads to a computational burden in solving non-deterministic polynomial-time (NP)-hard problems. The Ising computer, which aims to solve NP-hard problems faces challenges such as high power consumption and limited scalability. Here, we experimentally present an Ising annealing computer based on 80 superparamagnetic tunnel junctions (SMTJs) with all-to-all connections, which solves a 70-city traveling salesman problem (TSP, 4761-node Ising problem). By taking advantage of the intrinsic randomness of SMTJs, implementing global annealing scheme, and using efficient algorithm, our SMTJ-based Ising annealer outperforms other Ising schemes in terms of power consumption and energy efficiency. Additionally, our approach provides a promising way to solve complex problems with limited hardware resources. Moreover, we propose a cross-bar array architecture for scalable integration using conventional magnetic random-access memories. Our results demonstrate that the SMTJ-based Ising computer with high energy efficiency, speed, and scalability is a strong candidate for future unconventional computing schemes.

Identifiers

PMID38658582
PMCPMC11043373

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.