Koji Nagata

646 total citations
69 papers, 432 citations indexed

About

Koji Nagata is a scholar working on Artificial Intelligence, Atomic and Molecular Physics, and Optics and Computational Theory and Mathematics. According to data from OpenAlex, Koji Nagata has authored 69 papers receiving a total of 432 indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in Artificial Intelligence, 51 papers in Atomic and Molecular Physics, and Optics and 19 papers in Computational Theory and Mathematics. Recurrent topics in Koji Nagata's work include Quantum Information and Cryptography (51 papers), Quantum Mechanics and Applications (50 papers) and Quantum Computing Algorithms and Architecture (42 papers). Koji Nagata is often cited by papers focused on Quantum Information and Cryptography (51 papers), Quantum Mechanics and Applications (50 papers) and Quantum Computing Algorithms and Architecture (42 papers). Koji Nagata collaborates with scholars based in Japan, South Korea and Vietnam. Koji Nagata's co-authors include Tadao Nakamura, Ahmed Farouk, Masato Koashi, Nobuyuki Imoto, Shahrokh Heidari, Wiesław Laskowski, Mosayeb Naseri, Josep Amengual i Batle, Tomasz Paterek and S. Abdalla and has published in prestigious journals such as Physical Review Letters, Physical Review A and Journal of Mathematical Physics.

In The Last Decade

Koji Nagata

57 papers receiving 414 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Koji Nagata Japan 13 356 266 90 40 33 69 432
Alain Tapp Canada 11 893 2.5× 546 2.1× 285 3.2× 60 1.5× 31 0.9× 22 960
Matthew McKague Australia 11 412 1.2× 373 1.4× 22 0.2× 24 0.6× 20 0.6× 26 530
Hongxiang Chen China 5 554 1.6× 325 1.2× 110 1.2× 22 0.6× 9 0.3× 13 648
Serge Fehr Netherlands 9 329 0.9× 179 0.7× 48 0.5× 30 0.8× 49 1.5× 27 390
Aleks Kissinger United Kingdom 12 490 1.4× 240 0.9× 176 2.0× 39 1.0× 9 0.3× 42 591
Damian S. Steiger Switzerland 7 581 1.6× 297 1.1× 130 1.4× 22 0.6× 7 0.2× 11 656
Nicolas Delfosse United States 12 497 1.4× 276 1.0× 155 1.7× 41 1.0× 4 0.1× 19 567
Frédéric Dupuis Switzerland 14 694 1.9× 531 2.0× 91 1.0× 156 3.9× 23 0.7× 27 832
Guang‐Bao Xu China 18 751 2.1× 660 2.5× 59 0.7× 7 0.2× 29 0.9× 56 808
Ross Duncan United Kingdom 12 556 1.6× 211 0.8× 180 2.0× 15 0.4× 14 0.4× 46 655

Countries citing papers authored by Koji Nagata

Since Specialization
Citations

This map shows the geographic impact of Koji Nagata's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Koji Nagata with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koji Nagata more than expected).

Fields of papers citing papers by Koji Nagata

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koji Nagata. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Koji Nagata. The network helps show where Koji Nagata may publish in the future.

Co-authorship network of co-authors of Koji Nagata

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Nagata. A scholar is included among the top collaborators of Koji Nagata based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koji Nagata. Koji Nagata is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Nagata, Koji & Tadao Nakamura. (2024). Mathematical digital quantum computation by means of much more logical skills. Quantum Studies Mathematics and Foundations. 11(2). 363–377. 1 indexed citations
2.
Nagata, Koji, et al.. (2022). Computational complexity in high-dimensional quantum computing. Quantum Machine Intelligence. 4(2). 1 indexed citations
3.
Nagata, Koji & Tadao Nakamura. (2021). A Quantum Algorithm for a FULL Adder Operation Based on Registers of the CPU in a Quantum-gated Computer. International Journal of Theoretical Physics. 60(8). 2986–2994. 3 indexed citations
4.
Nagata, Koji, et al.. (2019). No-Cloning Theorem, Kochen-Specker Theorem, and Quantum Measurement Theories. International Journal of Theoretical Physics. 58(6). 1845–1853. 3 indexed citations
5.
Nagata, Koji, et al.. (2018). Kochen-Specker Theorem and the Two Quantum Measurement Theories. Studies in Applied Mathematics. 2(1). 29–36. 1 indexed citations
6.
Nagata, Koji, et al.. (2018). Efficient Quantum Algorithms of Finding the Roots of a Polynomial Function. International Journal of Theoretical Physics. 57(8). 2546–2555. 3 indexed citations
7.
Nagata, Koji & Tadao Nakamura. (2018). Quantum algorithm for the root-finding problem. Quantum Studies Mathematics and Foundations. 6(1). 135–139. 3 indexed citations
8.
Nagata, Koji & Tadao Nakamura. (2018). Quantum Communication Based on an Algorithm of Determining a Matrix. International Journal of Theoretical Physics. 58(1). 247–254. 1 indexed citations
9.
Nagata, Koji. (2016). Measurement Theory Based on the Truth Values Violates Local Realism. International Journal of Theoretical Physics. 56(2). 372–376.
10.
Nagata, Koji & Tadao Nakamura. (2016). Kochen-Specker Theorem as a Precondition for Quantum Computing. International Journal of Theoretical Physics. 55(12). 5193–5201. 2 indexed citations
11.
Nagata, Koji & Tadao Nakamura. (2015). Violation of Heisenberg’s Uncertainty Principle. OALib. 2(8). 1–6. 8 indexed citations
12.
13.
Nagata, Koji. (2009). Multipartite Generalized Bell Inequality with an Arbitrary Number of Settings. International Journal of Theoretical Physics. 48(12). 3293–3303.
14.
Nagata, Koji. (2009). There is No Axiomatic System for the Quantum Theory. International Journal of Theoretical Physics. 48(12). 3532–3536. 7 indexed citations
15.
Nagata, Koji & Tadao Nakamura. (2009). Can von Neumann’s Theory Meet the Deutsch-Jozsa Algorithm?. International Journal of Theoretical Physics. 49(1). 162–170. 9 indexed citations
16.
Nagata, Koji & Jaewook Ahn. (2008). THE CONFLICT BETWEEN BELL–ŻUKOWSKI INEQUALITY AND BELL–MERMIN INEQUALITY. Modern Physics Letters A. 23(35). 2967–2977. 1 indexed citations
17.
18.
Nagata, Koji. (2006). Comment on “All quantum observables in a hidden-variable model must commute simultaneously”. Physical Review A. 73(6). 4 indexed citations
19.
Nagata, Koji, Wiesław Laskowski, Marcin Wieśniak, & Marek Żukowski. (2004). RotationalInvariance as an Additional Constraint on Local Realism. Physical Review Letters. 93(23). 230403–230403. 20 indexed citations
20.
Nagata, Koji, Masato Koashi, & Nobuyuki Imoto. (2002). Configuration of Separability and Tests for Multipartite Entanglement in Bell-Type Experiments. Physical Review Letters. 89(26). 260401–260401. 44 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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