H. Umezawa

7.3k total citations
282 papers, 5.3k citations indexed

About

H. Umezawa is a scholar working on Atomic and Molecular Physics, and Optics, Condensed Matter Physics and Statistical and Nonlinear Physics. According to data from OpenAlex, H. Umezawa has authored 282 papers receiving a total of 5.3k indexed citations (citations by other indexed papers that have themselves been cited), including 145 papers in Atomic and Molecular Physics, and Optics, 100 papers in Condensed Matter Physics and 90 papers in Statistical and Nonlinear Physics. Recurrent topics in H. Umezawa's work include Physics of Superconductivity and Magnetism (73 papers), Advanced Thermodynamics and Statistical Mechanics (52 papers) and Quantum Chromodynamics and Particle Interactions (48 papers). H. Umezawa is often cited by papers focused on Physics of Superconductivity and Magnetism (73 papers), Advanced Thermodynamics and Statistical Mechanics (52 papers) and Quantum Chromodynamics and Particle Interactions (48 papers). H. Umezawa collaborates with scholars based in Canada, Japan and United States. H. Umezawa's co-authors include H. Matsumoto, M. Tachiki, H. Matsumoto, Yasushi Takahashi, Toshihico Arimitsu, F. Mancini, L. Leplae, Y. Yamanaka, S. Kamefuchi and Y. Nakano and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Journal of Applied Physics.

In The Last Decade

H. Umezawa

274 papers receiving 5.0k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
H. Umezawa Canada	34	2.9k	1.6k	1.6k	1.5k	697	282	5.3k
R. Balian France	25	2.3k 0.8×	1.7k 1.0×	1.1k 0.7×	1.0k 0.7×	278 0.4×	49	4.0k
J. W. Clark United States	33	2.0k 0.7×	502 0.3×	1.2k 0.7×	676 0.5×	659 0.9×	182	3.7k
H. Smith Denmark	38	6.4k 2.2×	1.2k 0.8×	302 0.2×	2.2k 1.5×	279 0.4×	138	7.5k
Kerson Huang United States	29	3.3k 1.1×	1.1k 0.7×	1.1k 0.7×	877 0.6×	503 0.7×	82	5.0k
Y. Nambu United States	35	3.0k 1.0×	1.2k 0.8×	10.0k 6.2×	1.6k 1.1×	1.7k 2.5×	117	13.1k
A. Zee United States	56	3.1k 1.1×	1.3k 0.8×	7.8k 4.8×	1.8k 1.2×	2.5k 3.5×	208	11.5k
D. J. Wallace United Kingdom	31	1.1k 0.4×	634 0.4×	818 0.5×	1.9k 1.3×	169 0.2×	78	3.1k
Martin C. Gutzwiller United States	24	5.1k 1.7×	5.1k 3.2×	756 0.5×	2.3k 1.6×	413 0.6×	59	8.7k
Chen Ning Yang United States	32	4.5k 1.5×	1.4k 0.8×	2.5k 1.5×	2.2k 1.5×	551 0.8×	106	7.6k
M. P. Nightingale United States	31	6.9k 2.3×	1.2k 0.7×	518 0.3×	4.3k 2.9×	177 0.3×	74	9.1k

Countries citing papers authored by H. Umezawa

Since Specialization

Citations

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

Fields of papers citing papers by H. Umezawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H. Umezawa

This figure shows the co-authorship network connecting the top 25 collaborators of H. Umezawa. A scholar is included among the top collaborators of H. Umezawa 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 H. Umezawa. H. Umezawa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Umezawa, H.. (1995). Advanced field theory: micro, macro, and thermal physics. CERN Document Server (European Organization for Nuclear Research). 138 indexed citations

Umezawa, H.. (1995). DEVELOPMENT IN CONCEPTS IN QUANTUM FIELD THEORY IN HALF CENTURY. Mathematica japonica. 41(1). 109–124. 13 indexed citations

Khanna, F. C. & H. Umezawa. (1994). Field Theory, Symmetry Rearrangement, and Nuclei. Chinese Journal of Physics. 32(6). 1317–1327. 1 indexed citations

Umezawa, H. & Y. Yamanaka. (1992). TEMPORAL DESCRIPTION OF THERMAL QUANTUM FIELDS. Modern Physics Letters A. 7(37). 3509–3520. 7 indexed citations

Mann, A., M. Revzen, H. Umezawa, & Y. Yamanaka. (1991). On classical properties of thermal squeezed states. Journal of Physics A Mathematical and General. 24(19). 4527–4533. 1 indexed citations

Umezawa, H. & Toshihico Arimitsu. (1986). Time-Dependent Renormalization in Non-Equilibrium Thermo Field Dynamics. Progress of Theoretical Physics Supplement. 86. 243–252. 12 indexed citations

Huang, Chao‐Yuan, C. E. Olsen, Gregory Kozlowski, et al.. (1985). Anomalous surface impedance in reentrant ferromagnetic superconductors. Journal of Applied Physics. 57(8). 3104–3106. 3 indexed citations

Matsumoto, H., Mikio Nakahara, Y. Nakano, & H. Umezawa. (1984). Supersymmetry at finite temperature. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields. 29(12). 2838–2850. 30 indexed citations

Umezawa, H., H. Matsumoto, & M. Tachiki. (1982). Thermo field dynamics and condensed states. CERN Document Server (European Organization for Nuclear Research). 418 indexed citations

10.

Matsumoto, H., et al.. (1981). Asymptotic condition and Hamiltonian in quantum field theory with extended objects. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields. 24(2). 406–415. 9 indexed citations

11.

Mancini, F. & H. Umezawa. (1973). Computation of the boson characteristic function. Lettere al nuovo cimento della societa italiana di fisica/Lettere al nuovo cimento. 7(4). 125–128. 8 indexed citations

12.

Ezawa, H., Y. Tomozawa, & H. Umezawa. (1957). Quantum statistics of fields and multiple production of mesons. Il Nuovo Cimento. 5(4). 810–841. 57 indexed citations

13.

Ôneda, S. & H. Umezawa. (1953). On the Families of Spinor Fields. Progress of Theoretical Physics. 9(6). 685–687. 2 indexed citations

14.

Ôneda, S. & H. Umezawa. (1953). On the Families of Spinor Fields. Progress of Theoretical Physics. 9(6). 685–687. 16 indexed citations

15.

Umezawa, H., et al.. (1952). On the Self-stress. Progress of Theoretical Physics. 8(2). 193–204. 1 indexed citations

16.

Umezawa, H., et al.. (1952). On the Self-stress. Progress of Theoretical Physics. 8(2). 193–204. 3 indexed citations

17.

Sakata, Shoichi, H. Umezawa, & S. Kamefuchi. (1952). On the Structure of the Interaction of the Elementary Particles, I. Progress of Theoretical Physics. 7(4). 377–390. 7 indexed citations

18.

Takahashi, Yu & H. Umezawa. (1952). On the Interaction Representation. Progress of Theoretical Physics. 8(4). 493–494. 1 indexed citations

19.

Umezawa, H., et al.. (1951). On the Multiple Production of Mesons1). Progress of Theoretical Physics. 6(3). 428–429. 2 indexed citations

20.

Umezawa, H., et al.. (1951). On the Problem of Covariance in Quantum Electrodynamics, I. Progress of Theoretical Physics. 6(1). 112–121. 1 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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