Citation Rankings
Highly Cited Researchers
University of the Witwatersrand Highly Cited Researchers CitationNatural Sciences / Physics Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,288
62,160
0.463
* Total Citation Counts Rankings
Ranking Based On Selection :2
Condensed Matter
Density Functional Theory
Electronic Structure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,848
42,131
0.534
* Total Citation Counts Rankings
Ranking Based On Selection :3
High Energy physics
Grid Computing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,241
41,263
0.548
* Total Citation Counts Rankings
Ranking Based On Selection :4
Astrophysics
Cosmology
Astro-Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,251
30,617
0.484
* Total Citation Counts Rankings
Ranking Based On Selection :5
High Energy Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,365
51,044
0.957
* Total Citation Counts Rankings
Ranking Based On Selection :6
gamma-ray astronomy
Cosmic Rays
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,724
18,067
0.387
* Total Citation Counts Rankings
Ranking Based On Selection :7
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,007
21,225
0.606
* Total Citation Counts Rankings
Ranking Based On Selection :8
particle physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,125
9,619
0.368
* Total Citation Counts Rankings
Ranking Based On Selection :9
Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,938
19,237
0.965
* Total Citation Counts Rankings
Ranking Based On Selection :10
Phosphors
Materials Science
Solid State Physics
Solar Cells
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,977
5,091
0.567
* Total Citation Counts Rankings
Ranking Based On Selection :11
beam shaping
optical orbital angular momentum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,508
2,975
0.660
* Total Citation Counts Rankings
Ranking Based On Selection :12
Quantum entanglement
Orbital angular momentum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,238
2,096
0.647
* Total Citation Counts Rankings
Ranking Based On Selection :13
String Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,770
1,152
0.416
* Total Citation Counts Rankings
Ranking Based On Selection :14
Theoretical Chemistry
Theoretical Physics
Computational Materials Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,677
932
0.348
* Total Citation Counts Rankings
Ranking Based On Selection :15
Nanotechnology
carbon
condensed matter physics
quantum technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,673
684
0.256
* Total Citation Counts Rankings
Ranking Based On Selection :16
non-Newtonian fluids
differential equations
integral equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,578
1,248
0.484
* Total Citation Counts Rankings
Ranking Based On Selection :17
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,467
1,104
0.448
* Total Citation Counts Rankings
Ranking Based On Selection :18
Quantum field theory
Holography
Condensed matter
Gravity
String theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,087
773
0.370
* Total Citation Counts Rankings
Ranking Based On Selection :19
Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,012
368
0.183
* Total Citation Counts Rankings
Ranking Based On Selection :20
orbital angular momentum
quantum photonics
quantum information
quantum entanglement
photonic computing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,999
1,941
0.971
* Total Citation Counts Rankings
Ranking Based On Selection :21
Field Theory
String Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,607
345
0.215
* Total Citation Counts Rankings
Ranking Based On Selection :22
Condensed matter physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,249
529
0.424
* Total Citation Counts Rankings
Ranking Based On Selection :23
Nuclear Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
878
413
0.470
* Total Citation Counts Rankings
Ranking Based On Selection :24
general relativity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
628
148
0.236
* Total Citation Counts Rankings
Ranking Based On Selection :25
cosmology
dark matter
causation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
610
553
0.907
* Total Citation Counts Rankings
Rankings
1,764
6
2
Ranking Based On Selection: 1
Bruce Mellado
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,288
62,160
0.463
* Total Citation Counts Rankings
Rankings
4,762
13
3
Ranking Based On Selection: 2
Daniel Joubert
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,848
42,131
0.534
Condensed Matter
Density Functional Theory
Electronic Structure
* Total Citation Counts Rankings
Rankings
5,190
14
4
Ranking Based On Selection: 3
Zeblon Vilakazi
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,241
41,263
0.548
* Total Citation Counts Rankings
Rankings
6,860
22
7
Ranking Based On Selection: 4
Sergio Colafrancesco
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,251
30,617
0.484
Astrophysics
Cosmology
Astro-Particle Physics
* Total Citation Counts Rankings
Rankings
9,029
26
8
Ranking Based On Selection: 5
Joyful Mdhluli
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,365
51,044
0.957
* Total Citation Counts Rankings
Rankings
11,102
32
10
Ranking Based On Selection: 6
Nukri Komin
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,724
18,067
0.387
* Total Citation Counts Rankings
Rankings
17,632
49
12
Ranking Based On Selection: 7
Andrew Chen
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,007
21,225
0.606
* Total Citation Counts Rankings
Rankings
27,644
76
14
Ranking Based On Selection: 8
Xifeng Ruan
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,125
9,619
0.368
* Total Citation Counts Rankings
Rankings
40,751
126
20
Ranking Based On Selection: 9
Tasnuva Chowdhury
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,938
19,237
0.965
* Total Citation Counts Rankings
Rankings
111,375
404
53
Ranking Based On Selection: 10
Martin Ntwaeaborwa
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,977
5,091
0.567
Phosphors
Materials Science
Solid State Physics
Solar Cells
Chemistry
* Total Citation Counts Rankings
Rankings
225,992
950
123
Ranking Based On Selection: 11
Angela Dudley
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,508
2,975
0.660
beam shaping
optical orbital angular momentum
* Total Citation Counts Rankings
Rankings
302,954
1,343
158
Ranking Based On Selection: 12
Melanie Mclaren
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,238
2,096
0.647
Quantum entanglement
Orbital angular momentum
* Total Citation Counts Rankings
Rankings
344,323
1,558
179
Ranking Based On Selection: 13
Vishnu Jejjala
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,770
1,152
0.416
* Total Citation Counts Rankings
Rankings
353,970
1,612
184
Ranking Based On Selection: 14
Alex Quandt
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,677
932
0.348
Theoretical Chemistry
Theoretical Physics
Computational Materials Science
* Total Citation Counts Rankings
Rankings
354,386
1,613
185
Ranking Based On Selection: 15
Somnath Bhattacharyya
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,673
684
0.256
Nanotechnology
carbon
condensed matter physics
quantum technology
* Total Citation Counts Rankings
Rankings
364,614
1,665
188
Ranking Based On Selection: 16
Shirley Abelman
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,578
1,248
0.484
non-Newtonian fluids
differential equations
integral equations
* Total Citation Counts Rankings
Rankings
377,177
1,739
195
Ranking Based On Selection: 17
Daniel Wamwangi
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,467
1,104
0.448
* Total Citation Counts Rankings
Rankings
427,368
2,025
217
Ranking Based On Selection: 18
Pallab Basu
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,087
773
0.370
Quantum field theory
Holography
Condensed matter
Gravity
String theory
* Total Citation Counts Rankings
Rankings
438,872
2,091
226
Ranking Based On Selection: 19
Kevin Goldstein
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,012
368
0.183
* Total Citation Counts Rankings
Rankings
440,703
2,102
229
Ranking Based On Selection: 20
Isaac Nape
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,999
1,941
0.971
orbital angular momentum
quantum photonics
quantum information
quantum entanglement
photonic computing
* Total Citation Counts Rankings
Rankings
512,368
2,486
271
Ranking Based On Selection: 21
Joao P Rodrigues
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,607
345
0.215
* Total Citation Counts Rankings
Rankings
598,867
2,995
315
Ranking Based On Selection: 22
Abhishek Pandey
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,249
529
0.424
* Total Citation Counts Rankings
Rankings
725,341
3,710
377
Ranking Based On Selection: 23
Iyabo Usman
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
878
413
0.470
* Total Citation Counts Rankings
Rankings
841,100
4,441
440
Ranking Based On Selection: 24
Cebile Khumalo
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
628
148
0.236
* Total Citation Counts Rankings
Rankings
850,273
4,502
443
Ranking Based On Selection: 25
Geoff Beck
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
610
553
0.907