World's Best Scientists 2026 revealed!
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Robert J. Buenker

Robert J. Buenker

University of Wuppertal
Germany

D-Index & Metrics

Chemistry

D-Index
86
Citations
25441
World Ranking
2550
National Ranking
191

Physics

D-Index
86
Citations
25624
World Ranking
2532
National Ranking
233

Robert J. Buenker publication distribution in Physics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Physics in 2026. The highlighted bar marks where Robert J. Buenker sits on this spectrum.

103–122 publications: 7 scientists 123–142 publications: 10 scientists 143–162 publications: 31 scientists 163–182 publications: 35 scientists 183–202 publications: 53 scientists 203–222 publications: 81 scientists 223–242 publications: 85 scientists 243–262 publications: 112 scientists 263–282 publications: 114 scientists 283–302 publications: 126 scientists 303–322 publications: 136 scientists 323–342 publications: 162 scientists 343–362 publications: 155 scientists 363–382 publications: 156 scientists 383–402 publications: 134 scientists 403–422 publications: 145 scientists 423–442 publications: 147 scientists 443–462 publications: 131 scientists 463–482 publications: 131 scientists 483–502 publications: 116 scientists 503–522 publications: 106 scientists 523–542 publications: 103 scientists 543–562 publications: 87 scientists 563–582 publications: 84 scientists 583–602 publications: 94 scientists 603–622 publications: 70 scientists 623–642 publications: 76 scientists 643–662 publications: 60 scientists 663–682 publications: 54 scientists 683–702 publications: 60 scientists 703–722 publications: 48 scientists 723–742 publications: 64 scientists 743–762 publications: 48 scientists 763–782 publications: 37 scientists 783–802 publications: 43 scientists 803–822 publications: 34 scientists 823–842 publications: 36 scientists 843–862 publications: 32 scientists 863–882 publications: 32 scientists 883–902 publications: 31 scientists 903–922 publications: 25 scientists 923–942 publications: 15 scientists 943–962 publications: 24 scientists 963–982 publications: 13 scientists 983–1,002 publications: 21 scientists 1,003–1,022 publications: 21 scientists 1,023–1,042 publications: 16 scientists 1,043–1,062 publications: 9 scientists 1,063–1,082 publications: 19 scientists 1,083–1,102 publications: 11 scientists 1,103–1,122 publications: 17 scientists 1,123–1,142 publications: 11 scientists 1,143–1,162 publications: 7 scientists 1,163–1,182 publications: 4 scientists 1,183–1,202 publications: 10 scientists 1,203–1,222 publications: 8 scientists 1,223–1,242 publications: 16 scientists 1,243–1,262 publications: 4 scientists 1,263–1,282 publications: 10 scientists 1,283–1,302 publications: 5 scientists 1,303–1,322 publications: 7 scientists 1,323–1,342 publications: 4 scientists 1,343–1,362 publications: 8 scientists 1,363–1,382 publications: 6 scientists 1,383–1,402 publications: 7 scientists 1,403–1,422 publications: 3 scientists 1,423–1,442 publications: 4 scientists 1,443–1,462 publications: 4 scientists 1,463–1,468 publications: 3 scientists 1,469+ publications: 100 scientists
103 publications 1,469+

This scientist: 641 publications — 73rd percentile

73% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,469 publications or more.

Robert J. Buenker D-index placement in Physics in 2026

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

70–71 D-Index: 76 scientists 72–73 D-Index: 110 scientists 74–75 D-Index: 143 scientists 76–77 D-Index: 153 scientists 78–79 D-Index: 144 scientists 80–81 D-Index: 167 scientists 82–83 D-Index: 167 scientists 84–85 D-Index: 166 scientists 86–87 D-Index: 132 scientists 88–89 D-Index: 155 scientists 90–91 D-Index: 134 scientists 92–93 D-Index: 137 scientists 94–95 D-Index: 102 scientists 96–97 D-Index: 112 scientists 98–99 D-Index: 110 scientists 100–101 D-Index: 116 scientists 102–103 D-Index: 97 scientists 104–105 D-Index: 103 scientists 106–107 D-Index: 87 scientists 108–109 D-Index: 90 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 78 scientists 114–115 D-Index: 75 scientists 116–117 D-Index: 67 scientists 118–119 D-Index: 69 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 59 scientists 124–125 D-Index: 53 scientists 126–127 D-Index: 42 scientists 128–129 D-Index: 41 scientists 130–131 D-Index: 33 scientists 132–133 D-Index: 32 scientists 134–135 D-Index: 45 scientists 136–137 D-Index: 19 scientists 138–139 D-Index: 24 scientists 140–141 D-Index: 28 scientists 142–143 D-Index: 31 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 20 scientists 148–149 D-Index: 12 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 24 scientists 154–155 D-Index: 23 scientists 156–157 D-Index: 15 scientists 158–159 D-Index: 15 scientists 160–161 D-Index: 11 scientists 162–163 D-Index: 17 scientists 164–165 D-Index: 12 scientists 166–167 D-Index: 11 scientists 168–169 D-Index: 9 scientists 170–171 D-Index: 9 scientists 172–173 D-Index: 11 scientists 174–175 D-Index: 4 scientists 176–177 D-Index: 8 scientists 178–179 D-Index: 5 scientists 180–181 D-Index: 3 scientists 182–183 D-Index: 4 scientists 184 D-Index: 4 scientists 185+ D-Index: 99 scientists
70 D-Index 185+

This scientist: 86 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 185 D-Index or more.

Overview

Robert J. Buenker is affiliated with the University of Wuppertal in Germany. Their research predominantly spans the field of Physics and Astronomy, with detailed focus in subfields including Astronomy and Astrophysics, Atomic and Molecular Physics and Optics, Statistical and Nonlinear Physics, Nuclear and High Energy Physics, and Atmospheric Science.

The core topics covered in their work include Relativity and Gravitational Theory, Quantum Mechanics and Applications, Cosmology and Gravitation Theories, Atomic and Molecular Physics, Experimental and Theoretical Physics Studies, Advanced Chemical Physics Studies, and Atmospheric Ozone and Climate.

Buenker has several recent publications demonstrating active research output. Notable papers include:

  • Single- and Double-Electron Capture Processes in Low-Energy Collisions of N4+ Ions with He*, 2020, Chinese Physics Letters
  • Proof That the Lorentz Transformation is Incompatible with the Law of Causality, 2022, East African Scholars Journal of Engineering and Computer Sciences
  • Proof that Einstein's Light Speed Postulate is Untenable, 2022, East African Scholars Journal of Engineering and Computer Sciences
  • Experimental Refutation of Einstein's Symmetry Principle, 2023, East African Scholars Journal of Engineering and Computer Sciences
  • Incompatibility of FitzGerald-Lorentz Contraction and Time Dilation, 2023, East African Scholars Journal of Engineering and Computer Sciences

The frequent collaborators in their research include Yi-Zhi Qu, Yong Wu, Chunhua Liu, Heinz-Peter Liebermann, and Ling Liu.

Research dissemination primarily occurs through specific publication venues such as the East African Scholars Journal of Engineering and Computer Sciences, Journal of Physics & Optics Sciences, Chinese Physics B, Chinese Physics Letters, and the International Journal of Advanced Multidisciplinary Research and Studies.

Best Publications

  • Applicability of the multi-reference double-excitation CI (MRD-CI) method to the calculation of electronic wavefunctions and comparison with related techniques

    Robert J. Buenker;Sigrid D. Peyerimhoff;Werner Butscher

  • Energy Extrapolation in CI Calculations

    Robert J. Buenker;Sigrid D. Peyerimhoff

  • Implementation of the table CI method: Matrix elements between configurations with the same number of open-shells

    Robert J. Buenker;Robin A. Phillips

  • Individualized configuration selection in CI calculations with subsequent energy extrapolation

    Robert J. Buenker;Sigrid D. Peyerimhoff

  • The ground state of the CN+ ion: a multi-reference Ci study

    Pablo J. Bruna;Sigrid D. Peyerimhoff;Robert J. Buenker

  • Electronically excited and ionized states of the chlorine molecule

    Sigrid D. Peyerimhoff;Robert J. Buenker

  • Molecular geometry and the Mulliken-Walsh molecular orbital model. Ab initio study

    Robert J. Buenker;Sigrid D. Peyerimhoff

  • A new table-direct configuration interaction method for the evaluation of Hamiltonian matrix elements in a basis of linear combinations of spin-adapted functions

    Stefan Krebs;Robert J. Buenker

  • Ab initio CI study of the stability and electronic spectrum of the HOCl molecule

    Gerhard Hirsch;Pablo J. Bruna;Sigrid D. Peyerimhoff;Robert J. Buenker

  • All-valence-electron configuration mixing calculations for the characterization of the 1(π, π*) states of ethylene

    Robert J. Buenker;Sigrid D. Peyerimhoff

  • Non-adiabatic coupling matrix elements for large CI wavefunctions

    Gerhard Hirsch;Pablo J. Bruna;Robert J. Buenker;Sigrid D. Peyerimhoff

  • Comparison of perturbatively corrected energy results from multiple reference double‐excitation configuration‐interaction method calculations with exact full configuration‐interaction benchmark values

    David B. Knowles;José Ramon Alvarez‐Collado;Gerhard Hirsch;Robert J. Buenker

  • Theoretical prediction of the potential curves for the lowest‐lying states of the isovalent diatomics CN+, Si2, SiC, CP+, and SiN+ using the abinitio MRD‐CI method

    Pablo J. Bruna;Sigrid D. Peyerimhoff;Robert J. Buenker

  • Calculations on the electronic spectrum of water

    Robert J. Buenker;Sigrid D. Peyerimhoff

  • Combining perturbation theory techniques with variational CI calculations to study molecular excited states

    Robert J. Buenker

  • Calculation of spin-forbidden radiative transitions using correlated wavefunctions: Lifetimes of b1Σ+, a1Δ states in O2, S2 and SO

    Rainer Klotz;Christel M. Marian;Sigrid D. Peyerimhoff;Bernd A. Hess

  • Combined SCF and CI Method for the Calculation of Electronically Excited States of Molecules: Potential Curves for the Low‐Lying States of Formaldehyde

    Robert J. Buenker;Sigrid D. Peyerimhoff

  • Ab initiostudy of NO2: Part II: Non-adiabatic coupling between the two lowest2A′ states and the construction of a diabatic representation

    Gerhard Hirsch;Robert J. Buenker;Carlo Petrongolo

  • NONADIABATIC TREATMENT OF THE INTENSITY DISTRIBUTION IN THE V-N BANDS OF ETHYLENE

    C. Petrongolo;R. J. Buenker;S. D. Peyerimhoff

  • CI method for the study of general molecular potentials

    Robert J. Buenker;Sigrid D. Peyerimhoff

Frequent Co-Authors

Sigrid D. Peyerimhoff
Sigrid D. Peyerimhoff University of Bonn
Christel M. Marian
Christel M. Marian Heinrich Heine University Düsseldorf
Alex Dalgarno
Alex Dalgarno Harvard University
Peter Nordlander
Peter Nordlander Rice University
Josep M. Anglada
Josep M. Anglada Spanish National Research Council
Mark Brouard
Mark Brouard University of Oxford
Leland C. Allen
Leland C. Allen Princeton University
Gary J. Ferland
Gary J. Ferland University of Kentucky
Paul B. Corkum
Paul B. Corkum University of Ottawa
Vlasta Bonačić-Koutecký
Vlasta Bonačić-Koutecký University of Split

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Best Scientists Citing Robert J. Buenker

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Publications: 165

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Publications: 73

Hans Lischka

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Texas Tech University

Publications: 56

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Publications: 49

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Publications: 48

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Publications: 37

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Donald G. Truhlar

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