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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 63 8291 7527 2398 1991 165 18135

So Hirata publications per year

The chart shows the history of publications by So Hirata between 1995 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. So Hirata published across 31 years, from 1995 to 2025, averaging 7.5 papers a year. Output peaked at 16 publications in 2012. 14 of the 233 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1995 to 2025. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2012. 1995: 2 publications 1996: 2 publications 1997: 1 publication 1998: 5 publications 1999: 5 publications 2000: 5 publications 2001: 6 publications 2002: 8 publications 2003: 9 publications 2004: 7 publications 2005: 13 publications 2006: 9 publications 2007: 8 publications 2008: 9 publications 2009: 10 publications 2010: 14 publications 2011: 5 publications 2012: 16 publications 2013: 9 publications 2014: 16 publications 2015: 13 publications 2016: 5 publications 2017: 8 publications 2018: 6 publications 2019: 6 publications 2020: 9 publications 2021: 6 publications 2022: 3 publications 2023: 4 publications 2024: 7 publications 2025: 7 publications
1995 2025

233 publications in total across all disciplines

View publications per year as a table
So Hirata: publications per year, 1995 to 2025
Year Publications
1995 2
1996 2
1997 1
1998 5
1999 5
2000 5
2001 6
2002 8
2003 9
2004 7
2005 13
2006 9
2007 8
2008 9
2009 10
2010 14
2011 5
2012 16
2013 9
2014 16
2015 13
2016 5
2017 8
2018 6
2019 6
2020 9
2021 6
2022 3
2023 4
2024 7
2025 7
Total 233
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So Hirata publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where So Hirata sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 161–180 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 165 publications — 19th percentile

19% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350 165
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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So Hirata D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where So Hirata sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 62–63 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 63 D-Index — 54th percentile

54% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834 63
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

So Hirata is affiliated with the University of Illinois at Urbana-Champaign in the United States and works primarily within the field of Physics and Astronomy. Their research spans various specialized subfields, including Atomic and Molecular Physics, and Optics, Materials Chemistry, General Health Professions, Nuclear and High Energy Physics, and Condensed Matter Physics.

The core topics covered by Hirata's research include:

  • Advanced Chemical Physics Studies
  • Quantum, superfluid, helium dynamics
  • Spectroscopy and Quantum Chemical Studies
  • Cold Atom Physics and Bose-Einstein Condensates
  • Nuclear physics research studies
  • Advanced Thermodynamics and Statistical Mechanics
  • Physics of Superconductivity and Magnetism

Hirata has contributed to several peer-reviewed journals, with frequent publications appearing in:

  • The Journal of Chemical Physics
  • arXiv (Cornell University)
  • Molecular Physics
  • Physical Review E
  • Physical Review A/Physical Review, A

Some of the recent papers authored or coauthored by Hirata include:

  • Finite-temperature many-body perturbation theory in the grand canonical ensemble, 2020, The Journal of Chemical Physics
  • Nonconvergence of the Feynman-Dyson diagrammatic perturbation expansion of propagators, 2024, Physical Review A/Physical Review, A

Other relevant works in collaboration include:

  • Finite-temperature many-body perturbation theory in the canonical ensemble, 2020, Physical Review E
  • Grid-based diffusion Monte Carlo for fermions without the fixed-node approximation, 2020, Physical Review E
  • Convergence acceleration of Monte Carlo many-body perturbation methods by direct sampling, 2020, The Journal of Chemical Physics

Hirata has collaborated frequently with several researchers, including:

  • Alexander E. Doran
  • Ireneusz Grabowski
  • Xiuyi Qin
  • Rodney J. Bartlett
  • Julio César Cruz

Best Publications

  • Advances in methods and algorithms in a modern quantum chemistry program package

    Yihan Shao;Laszlo Fusti Molnar;Yousung Jung;Jörg Kussmann

  • Time-dependent density functional theory within the Tamm–Dancoff approximation

    So Hirata;Martin Head-Gordon

  • Q-Chem 2.0: a high-performance ab initio electronic structure program package

    Jing Kong;Christopher A. White;Christopher A. White;Anna I. Krylov;Anna I. Krylov;David Sherrill;David Sherrill

  • NWChem: Past, Present, and Future

    E. Aprà;E. J. Bylaska;W. A. de Jong;N. Govind

  • NWChem: Past, present, and future

    E. Aprà;E. J. Bylaska;W. A. de Jong;N. Govind

  • Time-dependent density functional theory for radicals: An improved description of excited states with substantial double excitation character

    So Hirata;Martin Head-Gordon

  • Tensor Contraction Engine: Abstraction and Automated Parallel Implementation of Configuration-Interaction, Coupled-Cluster, and Many-Body Perturbation Theories

    Unknown

  • Exact exchange treatment for molecules in finite-basis-set kohn-sham theory

    Stanislav Ivanov;So Hirata;Rodney J. Bartlett

  • Excitation Energies from Time-Dependent Density Functional Theory for Linear Polyene Oligomers: Butadiene to Decapentaene

    Chao Ping Hsu;So Hirata;Martin Head-Gordon

  • Synthesis of High-Performance Parallel Programs for a Class of ab Initio Quantum Chemistry Models

    G. Baumgartner;A. Auer;D.E. Bernholdt;A. Bibireata

  • Time-dependent density functional study on the electronic excitation energies of polycyclic aromatic hydrocarbon radical cations of naphthalene, anthracene, pyrene, and perylene

    So Hirata;So Hirata;Timothy J. Lee;Martin Head-Gordon

  • Can optimized effective potentials be determined uniquely

    So Hirata;Stanislav Ivanov;Ireneusz Grabowski;Rodney J. Bartlett

  • Configuration interaction singles, time-dependent Hartree-Fock, and time-dependent density functional theory for the electronic excited states of extended systems

    So Hirata;Martin Head-Gordon;Rodney J. Bartlett

  • Perturbative corrections to coupled-cluster and equation-of-motion coupled-cluster energies: A determinantal analysis

    So Hirata;Marcel Nooijen;Ireneusz Grabowski;Rodney J. Bartlett

  • Combined coupled-cluster and many-body perturbation theories.

    So Hirata;Peng Dong Fan;Alexander A. Auer;Marcel Nooijen

  • The exchange-correlation potential in ab initio density functional theory.

    Rodney J. Bartlett;Ireneusz Grabowski;Ireneusz Grabowski;So Hirata;Stanislav Ivanov

  • Coupled-cluster singles and doubles for extended systems.

    So Hirata;Rafał Podeszwa;Motoi Tobita;Rodney J. Bartlett

  • It Takes More Than an Imine: The Role of the Central Atom on the Electron-Accepting Ability of Benzotriazole and Benzothiadiazole Oligomers

    Dinesh G. Patel;Fude Feng;Yu Ya Ohnishi;Khalil A. Abboud

  • Ab initio density functional theory: OEP-MBPT(2). A new orbital-dependent correlation functional

    Ireneusz Grabowski;So Hirata;Stanislav Ivanov;Rodney J. Bartlett

  • Fast electron correlation methods for molecular clusters in the ground and excited states

    So Hirata;Marat Valiev;Michel Dupuis;Sotiris S. Xantheas

  • Fast electron correlation methods for molecular clusters without basis set superposition errors.

    Muneaki Kamiya;So Hirata;Marat Valiev

Frequent Co-Authors

Rodney J. Bartlett
Rodney J. Bartlett University of Florida
Martin Head-Gordon
Martin Head-Gordon University of California, Berkeley
Marcel Nooijen
Marcel Nooijen University of Waterloo
Xiao He
Xiao He East China Normal University
Robert J. Harrison
Robert J. Harrison Murdoch University
Suehiro Iwata
Suehiro Iwata Keio University
Kwang S. Kim
Kwang S. Kim Ulsan National Institute of Science and Technology
P. Sadayappan
P. Sadayappan University of Utah
Habib N. Najm
Habib N. Najm Sandia National Laboratories

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