Hitoshi Sumi

4.6k total citations · 1 hit paper
86 papers, 3.8k citations indexed

About

Hitoshi Sumi is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Physical and Theoretical Chemistry. According to data from OpenAlex, Hitoshi Sumi has authored 86 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 72 papers in Atomic and Molecular Physics, and Optics, 32 papers in Electrical and Electronic Engineering and 28 papers in Physical and Theoretical Chemistry. Recurrent topics in Hitoshi Sumi's work include Spectroscopy and Quantum Chemical Studies (45 papers), Photochemistry and Electron Transfer Studies (27 papers) and Molecular Junctions and Nanostructures (20 papers). Hitoshi Sumi is often cited by papers focused on Spectroscopy and Quantum Chemical Studies (45 papers), Photochemistry and Electron Transfer Studies (27 papers) and Molecular Junctions and Nanostructures (20 papers). Hitoshi Sumi collaborates with scholars based in Japan, Hungary and Poland. Hitoshi Sumi's co-authors include R. A. Marcus, Yutaka Toyozawa, Toshiaki Kakitani, Tsutomu Asano, Atsuko Sumi, Shuji Abe, Koji Ando, Hiroyuki Furuta, Jens Ulstrup and Hyun Sun Cho and has published in prestigious journals such as Journal of the American Chemical Society, Physical Review Letters and The Journal of Chemical Physics.

In The Last Decade

Hitoshi Sumi

86 papers receiving 3.6k citations

Hit Papers

Dynamical effects in electron transfer reactions 1986 2026 1999 2012 1986 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Dynamical effects in electron transfer reactions
    1986 807 citations Hitoshi Sumi et al. profile →

Peers

Hitoshi Sumi
Volkhard May Germany
Dmitry V. Matyushov United States
Keisuke Tominaga Japan
Igor V. Rubtsov United States
Takayoshi Kobayashi Japan
Roger F. Loring United States
Sanford Ruhman Israel
Anne B. Myers United States
Elisabetta Collini Italy
Joseph E. Subotnik United States
Volkhard May Germany
Hitoshi Sumi
Citations per year, relative to Hitoshi Sumi Hitoshi Sumi (= 1×) peers Volkhard May

Countries citing papers authored by Hitoshi Sumi

Since Specialization
Citations

This map shows the geographic impact of Hitoshi Sumi'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 Hitoshi Sumi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hitoshi Sumi more than expected).

Fields of papers citing papers by Hitoshi Sumi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hitoshi Sumi. 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 Hitoshi Sumi. The network helps show where Hitoshi Sumi may publish in the future.

Co-authorship network of co-authors of Hitoshi Sumi

This figure shows the co-authorship network connecting the top 25 collaborators of Hitoshi Sumi. A scholar is included among the top collaborators of Hitoshi Sumi 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 Hitoshi Sumi. Hitoshi Sumi 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.
Saito, Keisuke, et al.. (2009). Sequential or superexchange mechanism in bridged electron transfer distinguished by dynamics at a bridging molecule. Physical Chemistry Chemical Physics. 11(26). 5290–5290. 8 indexed citations
2.
Sumi, Hitoshi, et al.. (2003). Detection of the upper edge of exciton multiplets in the antenna complexes LH1 and LH2 of bacterial photosynthesis, by optical reflection. Chemical Physics Letters. 368(5-6). 547–554. 3 indexed citations
3.
Sumi, Hitoshi. (2001). Bacterial photosynthesis begins with quantum‐mechanical coherence. The Chemical Record. 1(6). 480–493. 45 indexed citations
4.
Sumi, Hitoshi. (2001). Solvent fluctuations and viscosity-dependent rates of solution reactions in a regime indescribable by the transition state theory. Journal of Molecular Liquids. 90(1-3). 185–194. 6 indexed citations
5.
Ando, Koji & Hitoshi Sumi. (1998). Nonequilibrium Oscillatory Electron Transfer in Bacterial Photosynthesis. The Journal of Physical Chemistry B. 102(52). 10991–11000. 59 indexed citations
6.
Sumi, Hitoshi & Tsutomu Asano. (1997). General expression for rates of solution reactions influenced by slow solvent fluctuations, and its experimental evidence. Electrochimica Acta. 42(18). 2763–2777. 10 indexed citations
7.
Sumi, Hitoshi. (1997). Phonon-progressional V–I characteristics of STM processes mediated by redox molecular adsorbates. Chemical Physics. 222(2-3). 269–280. 15 indexed citations
8.
9.
Sumi, Hitoshi & Tsutomu Asano. (1995). Is isomerization in highly viscous solvents under pressure understandable with the idea of frequency-dependent friction?. Chemical Physics Letters. 240(1-3). 125–129. 10 indexed citations
10.
Sumi, Hitoshi. (1995). <title>Peculiarities in exciton-polaron formation and self-trapping in low dimensions</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 2362. 108–119. 2 indexed citations
11.
Sumi, Hitoshi & Atsuko Sumi. (1991). Polaron states and weak self-trapping in two dimensions. Solid State Communications. 78(10). 883–886. 5 indexed citations
12.
OHNO, Nobutada, Minoru Itoh, Satoshi Hashimoto, & Hitoshi Sumi. (1991). Self-trapping of free excitons in mixed K1−xRbxI crystals. Journal of Luminescence. 48-49. 125–128. 2 indexed citations
13.
Sumi, Hitoshi & Atsuko Sumi. (1989). Coexistence of two types of self-trapping for two-dimensional excitons. Solid State Communications. 71(10). 789–792. 9 indexed citations
14.
Sumi, Hitoshi & Jens Ulstrup. (1988). Dynamics of protein conformational fluctuation in enzyme catalysis with special attention to proton transfers in serine proteinases. Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 955(1). 26–42. 32 indexed citations
15.
Sumi, Hitoshi. (1984). Phonon-kick mechanism for defect reactions enhanced by electronic excitation. Journal of Physics C Solid State Physics. 17(34). 6071–6086. 24 indexed citations
16.
Sumi, Hitoshi. (1981). Multiphonon Nonradiative Recombination due to Successive Electron and Hole Capture by a Deep-Level Defect in Semiconductors. Physical Review Letters. 47(18). 1333–1336. 20 indexed citations
17.
Sumi, Hitoshi. (1980). Energy Transfer between Localized Electronic States –From Non-Adiabatic to Adiabatic Hopping Limits–. Journal of the Physical Society of Japan. 49(5). 1701–1712. 49 indexed citations
18.
Sumi, Hitoshi. (1978). Origin of temperature-independent electron mobilities in organic molecular crystals. Solid State Communications. 28(4). 309–312. 34 indexed citations
19.
Sumi, Hitoshi. (1977). A note on the structure of TCNQ salts and two kinds of Kohn anomalies. Solid State Communications. 21(1). 17–20. 20 indexed citations
20.
Sumi, Hitoshi & Yutaka Toyozawa. (1971). Urbach-Martienseen Rule and Exciton Trapped Momentarily by Lattice Vibrations. Journal of the Physical Society of Japan. 31(2). 342–358. 336 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Volkhard May Breakdown of academic impact, for papers by Dmitry V. Matyushov Breakdown of academic impact, for papers by Keisuke Tominaga Breakdown of academic impact, for papers by Igor V. Rubtsov Breakdown of academic impact, for papers by Takayoshi Kobayashi Breakdown of academic impact, for papers by Roger F. Loring Breakdown of academic impact, for papers by Sanford Ruhman Breakdown of academic impact, for papers by Anne B. Myers Breakdown of academic impact, for papers by Elisabetta Collini Breakdown of academic impact, for papers by Joseph E. Subotnik
Rankless by CCL
2026