H.-D. Gräf

3.6k total citations · 1 hit paper
87 papers, 2.8k citations indexed

About

H.-D. Gräf is a scholar working on Atomic and Molecular Physics, and Optics, Aerospace Engineering and Electrical and Electronic Engineering. According to data from OpenAlex, H.-D. Gräf has authored 87 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Atomic and Molecular Physics, and Optics, 29 papers in Aerospace Engineering and 28 papers in Electrical and Electronic Engineering. Recurrent topics in H.-D. Gräf's work include Particle accelerators and beam dynamics (29 papers), Particle Accelerators and Free-Electron Lasers (25 papers) and Quantum chaos and dynamical systems (25 papers). H.-D. Gräf is often cited by papers focused on Particle accelerators and beam dynamics (29 papers), Particle Accelerators and Free-Electron Lasers (25 papers) and Quantum chaos and dynamical systems (25 papers). H.-D. Gräf collaborates with scholars based in Germany, Switzerland and South Africa. H.-D. Gräf's co-authors include A. Richter, H. L. Harney, A. Heine, C. Dembowski, H. Rehfeld, W. D. Heiss, Ralph Hofferbert, P. Schardt, E. Spamer and Barbara Dietz and has published in prestigious journals such as Physical Review Letters, Applied Physics Letters and Physics Letters B.

In The Last Decade

H.-D. Gräf

81 papers receiving 2.7k citations

Hit Papers

align trajectories sort by overperformance

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.

Experimental Observation of the Topological Structure of Exceptional Points

2001 541 citations C. Dembowski, H.-D. Gräf et al. Physical Review Letters profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
H.-D. Gräf	1.9k	1.5k	775	303	209	87	2.8k
H. L. Harney	2.3k 1.2×	1.9k 1.2×	1.2k 1.5×	350 1.2×	129 0.6×	96	3.3k
I. Rotter	3.5k 1.9×	2.4k 1.5×	701 0.9×	160 0.5×	70 0.3×	136	4.1k
H. A. Weidenmüller	2.0k 1.1×	1.9k 1.2×	1.2k 1.6×	180 0.6×	74 0.4×	104	3.2k
Gert‐Ludwig Ingold	3.1k 1.7×	1.3k 0.9×	507 0.7×	176 0.6×	119 0.6×	98	4.0k
Jakub Zakrzewski	4.7k 2.5×	1.6k 1.0×	1.1k 1.4×	114 0.4×	98 0.5×	239	5.8k
Da Hsuan Feng	2.1k 1.1×	914 0.6×	1.1k 1.4×	83 0.3×	113 0.5×	132	3.0k
D. Wintgen	2.5k 1.3×	1.7k 1.1×	271 0.3×	53 0.2×	175 0.8×	53	3.2k
H.‐J. Stöckmann	2.2k 1.2×	2.2k 1.4×	207 0.3×	80 0.3×	414 2.0×	141	3.6k
Louis Michel	1.0k 0.6×	410 0.3×	1.0k 1.3×	86 0.3×	55 0.3×	66	2.5k
David Clément	2.7k 1.5×	571 0.4×	284 0.4×	144 0.5×	77 0.4×	87	3.2k

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-authorship network of co-authors of H.-D. Gräf

This figure shows the co-authorship network connecting the top 25 collaborators of H.-D. Gräf. A scholar is included among the top collaborators of H.-D. Gräf 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.-D. Gräf. H.-D. Gräf 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

Bonnes, U., Ralf Eichhorn, H.-D. Gräf, et al.. (2006). METHODS TO REDUCE THE ELECTRON BEAM ENERGY SPREAD AT THE S-DALINAC*. 1 indexed citations

Dembowski, C., Barbara Dietz, Thomas Friedrich, et al.. (2005). Distribution of resonance strengths in microwave billiards of mixed and chaotic dynamics. Physical Review E. 71(4). 46202–46202. 23 indexed citations

Hofferbert, Ralph, H. Alt, C. Dembowski, et al.. (2005). Experimental investigations of chaos-assisted tunneling in a microwave annular billiard. Physical Review E. 71(4). 46201–46201. 30 indexed citations

Dietz, Barbara, H.-D. Gräf, H. L. Harney, et al.. (2004). Encircling an exceptional point. Physical Review E. 69(5). 56216–56216. 195 indexed citations

Dembowski, C., Barbara Dietz, Thomas Friedrich, et al.. (2004). First Experimental Evidence for Quantum Echoes in Scattering Systems. Physical Review Letters. 93(13). 134102–134102. 22 indexed citations

Müller, W., et al.. (2004). Electromagnetic design of new RF power couplers for the S-DALINAC : contributed paper to the European Particle Accelerator Conference (EPAC), 05. - 09. July 2004, Luzern, Switzerland. 3 indexed citations

Dembowski, C., Barbara Dietz, H.-D. Gräf, et al.. (2003). Phase Shift Experiments Identifying Kramers Doublets in a Chaotic Superconducting Microwave Billiard of Threefold Symmetry. Physical Review Letters. 90(1). 14102–14102. 23 indexed citations

Dembowski, C., Barbara Dietz, H.-D. Gräf, et al.. (2003). Observation of a Chiral State in a Microwave Cavity. Physical Review Letters. 90(3). 34101–34101. 157 indexed citations

Dembowski, C., Barbara Dietz, H.-D. Gräf, et al.. (2002). Experimental Test of a Trace Formula for a Chaotic Three-Dimensional Microwave Cavity. Physical Review Letters. 89(6). 64101–64101. 41 indexed citations

10.

Dembowski, C., et al.. (2001). First Experimental Test of a Trace Formula for Billiard Systems Showing Mixed Dynamics. Physical Review Letters. 86(15). 3284–3287. 21 indexed citations

11.

Dembowski, C., H.-D. Gräf, H. L. Harney, et al.. (2001). Experimental Observation of the Topological Structure of Exceptional Points. Physical Review Letters. 86(5). 787–790. 541 indexed citations breakdown →

12.

Alt, H., C. Dembowski, H.-D. Gräf, et al.. (1999). Experimental versus numerical eigenvalues of a Bunimovich stadium billiard: A comparison. Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. 60(3). 2851–2857. 22 indexed citations

13.

Dembowski, C., et al.. (1999). Anderson localization in a string of microwave cavities. Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. 60(4). 3942–3948. 31 indexed citations

14.

Alt, H., Arnd Bäcker, C. Dembowski, et al.. (1998). Mode fluctuation distribution for spectra of superconducting microwave billiards. Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. 58(2). 1737–1742. 15 indexed citations

15.

Alt, H., C. Dembowski, H.-D. Gräf, et al.. (1997). Wave Dynamical Chaos in a Superconducting Three-Dimensional Sinai Billiard. Physical Review Letters. 79(6). 1026–1029. 39 indexed citations

16.

Auerhammer, J., H. Genz, H.-D. Gräf, et al.. (1993). The S-DALINAC facility — Operational experience from the accelerator and the experimental installations. Nuclear Physics A. 553. 841–844. 21 indexed citations

17.

Gräf, H.-D., et al.. (1991). Relativistic (e,2e) processes on atomic inner shells. Journal of Physics B Atomic Molecular and Optical Physics. 24(6). 1423–1434. 43 indexed citations

18.

Gräf, H.-D., A. Richter, E. Spamer, et al.. (1990). Latest results from the S band superconducting accelerator at Darmstadt. CERN Bulletin. 29. 53–58. 4 indexed citations

19.

Genz, H., et al.. (1989). The Darmstadt Near-Infrared Free-Electron Laser. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 1133. 82–82. 1 indexed citations

20.

Miska, H., H.-D. Gräf, A. Richter, et al.. (1975). High resolution inelastic electron scattering and radiation widths of levels in 16O. Physics Letters B. 58(2). 155–158. 36 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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