H.-D. Gräf

3.4k citations

76 papers · 2.9k · 1 hit paper · h-index 26

Impact in

Statistical and Nonlinear Physics top 0.5%
- Quantum chaos and dynamical systems
Acoustics and Ultrasonics top 5%

Papers in

Statistical and Nonlinear Physics 22
- Quantum chaos and dynamical systems 22
Nuclear and High Energy Physics 19
- Nuclear physics research studies 15
- Particle Detector Development and Performance 4
- Particle physics theoretical and experimental studies 2

Co-authors: A. Richter (49 shared papers)Hanns Ludwig Harney (11 shared papers)C. Dembowski (17 shared papers)A. Heine (11 shared papers)H. Rehfeld (16 shared papers)W. D. Heiss (3 shared papers)Ralph Hofferbert (14 shared papers)Barbara Dietz (6 shared papers)
Journals: Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (14 papers)Physical Review Letters (12 papers)Physics Letters B (7 papers)Nuclear Physics A (7 papers)Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (1 paper)
Partner nations: Germany South Africa Switzerland

In The Last Decade

H.-D. Gräf

69 papers receiving 2.8k citations

H.-D. Gräf's Hit Papers

align trajectories log scale

Experimental Observation of the Topological Structure of Exceptional Points 2001 · 633 citations

What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

2001 Physical Review Letters

Peers

Countries citing papers authored by H.-D. Gräf

Since Specialization

Citations

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

Fields of papers citing papers by H.-D. Gräf

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside H.-D. Gräf, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with H.-D. Gräf Line = papers co-authored together H.-D. Gräf links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 76 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Experimental Observation of the Topological Structure of Exceptional Points Physical Review Letters ·C. Dembowski, H.-D. Gräf, Hanns Ludwig Harney, A. Heine, W. D. Heiss, H. Rehfeld, A. Richter Hit paper breakdown →	2001	633
2	Distribution of eigenmodes in a superconducting stadium billiard with chaotic dynamics Physical Review Letters ·H.-D. Gräf, Hanns Ludwig Harney, H. Lengeler, Caio Lewenkopf, C. Rangacharyulu, A. Richter, P. Schardt, Hans A. Weidenmüller	1992	227
3	Encircling an exceptional point Physical Review E ·C. Dembowski, Barbara Dietz, H.-D. Gräf, Hanns Ludwig Harney, A. Heine, W. D. Heiss, A. Richter	2004	223
4	Observation of a Chiral State in a Microwave Cavity Physical Review Letters ·C. Dembowski, Barbara Dietz, H.-D. Gräf, Hanns Ludwig Harney, A. Heine, W. D. Heiss, A. Richter	2003	176
5	Gaussian Orthogonal Ensemble Statistics in a Microwave Stadium Billiard with Chaotic Dynamics: Porter-Thomas Distribution and Algebraic Decay of Time Correlations Physical Review Letters ·H. Alt, H.-D. Gräf, Hanns Ludwig Harney, Ralph Hofferbert, H. Lengeler, A. Richter, P. Schardt, Hans A. Weidenmüller	1995	146
6	Backward-angle high-resolution inelastic electron scattering on 40, 42, 44, 48Ca and observation of a very strong magnetic dipole ground-state transition in 48Ca Physics Letters B ·H.-D. Gräf, Warren J. Gross, D. Meuer, A. Richter, E. Spamer, O. Titze, W. Knüpfer +1 other	1980	126
7	First Experimental Evidence for Chaos-Assisted Tunneling in a Microwave Annular Billiard Physical Review Letters ·C. Dembowski, H.-D. Gräf, A. Heine, Ralph Hofferbert, H. Rehfeld, A. Richter	2000	126
8	Form factor of the M1 transition to the 10.23 MeV state in 48Ca and the role of the Δ(1232) Nuclear Physics A ·Werner Steffen, H.-D. Gräf, A. Richter, A. Härting, W. Weise, U. Deutschmann, R. Neuhausen +1 other	1983	62
9	Evidence for E2 resonances at high excitation energies in 208Pb Physics Letters B ·Fred R. Buskirk, H.-D. Gräf, R. Pitthan, Horst Theissen, O. Titze, Th. Walcher	1972	57
10	Coupled Microwave Billiards as a Model for Symmetry Breaking Physical Review Letters ·H. Alt, C. I. Barbosa, H.-D. Gräf, Thomas Guhr, Hanns Ludwig Harney, Ralph Hofferbert, H. Rehfeld, A. Richter	1998	48
11	High resolution electron scattering facility at the Darmstadt linear accelerator (DALINAC) Nuclear Instruments and Methods ·Th. Walcher, H.-D. Gräf, E. Spamer, Horst Theissen +1 other	1978	46
12	High resolution electron scattering facility at the Darmstadt linear accelerator (DALINAC) Nuclear Instruments and Methods ·H.-D. Gräf, H. Miska, E. Spamer, O. Titze, Th. Walcher	1978	45
13	Decay of classical chaotic systems: The case of the Bunimovich stadium Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics ·H. Alt, H.-D. Gräf, Hanns Ludwig Harney, Ralph Hofferbert, H. Rehfeld, A. Richter, P. Schardt	1996	44
14	Experimental Test of a Trace Formula for a Chaotic Three-Dimensional Microwave Cavity Physical Review Letters ·C. Dembowski, Barbara Dietz, H.-D. Gräf, A. Heine, T. Papenbrock, A. Richter, Christoph Richter	2002	44
15	Wave Dynamical Chaos in a Superconducting Three-Dimensional Sinai Billiard Physical Review Letters ·H. Alt, C. Dembowski, H.-D. Gräf, Ralph Hofferbert, H. Rehfeld, Rolf Schuhmann, T. Weiland +1 other	1997	41
16	High resolution electron scattering facility at the Darmstadt linear accelerator (DALINAC) Nuclear Instruments and Methods ·D. Schüll, J. Foh, H.-D. Gräf, H. Miska, Rainer Schneider, E. Spamer, Horst Theissen, O. Titze	1978	40
17	Inelastic electron scattering on the N = 28 isotones 48Ca, 50Ti, and 54Fe and the shape and magnitude of the M1 strength distributions Physics Letters B ·G. Eulenberg, D. I. Sober, H.-D. Gräf, G. Küchler, A. Richter, E. Spamer, Bernard Ch. Metsch, W. Knüpper +1 other	1982	40
18	High resolution inelastic electron scattering and radiation widths of levels in 16O Physics Letters B ·H. Miska, H.-D. Gräf, A. Richter, Rainer Schneider, D. Schüll, E. Spamer, Horst Theissen, O. Titze	1975	37
19	Anderson localization in a string of microwave cavities Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics ·C. Dembowski, H.-D. Gräf, Ralph Hofferbert, H. Rehfeld, A. Richter, Thomas Weiland	1999	36
20	Experimental investigations of chaos-assisted tunneling in a microwave annular billiard Physical Review E ·Ralph Hofferbert, H. Alt, C. Dembowski, H.-D. Gräf, Hanns Ludwig Harney, A. Heine, H. Rehfeld, Achim Richter	2005	36

About H.-D. Gräf

H.-D. Gräf is a scholar working on Statistical and Nonlinear Physics, Nuclear and High Energy Physics, Aerospace Engineering, Condensed Matter Physics and Electrical and Electronic Engineering, having authored 76 papers that have together received 2.9k indexed citations. Recurring topics across this work include Quantum chaos and dynamical systems (22 papers), Particle accelerators and beam dynamics (21 papers), Nuclear physics research studies (15 papers), Particle Accelerators and Free-Electron Lasers (9 papers), Particle Detector Development and Performance (4 papers), Crystallography and Radiation Phenomena (3 papers), Quantum Mechanics and Non-Hermitian Physics (3 papers) and Particle physics theoretical and experimental studies (2 papers). The work is most often cited by research in Statistical and Nonlinear Physics (1k citations), Acoustics and Ultrasonics (51 citations), Nuclear and High Energy Physics (642 citations), Atomic and Molecular Physics, and Optics (1.1k citations) and Mathematical Physics (159 citations). H.-D. Gräf has collaborated with scholars based in Germany, South Africa and Switzerland. Frequent co-authors include A. Richter, Hanns Ludwig Harney, C. Dembowski, A. Heine, H. Rehfeld, W. D. Heiss, Ralph Hofferbert, Barbara Dietz, P. Schardt and E. Spamer. Their work appears in journals such as Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, Physical Review Letters, Physics Letters B, Nuclear Physics A and Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms.

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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H.-D. Gräf's Hit Papers

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