University, Subject, Country, Region, World
South Africa 309 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jun 14, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.121.296) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
High Energy Particle Physic
Metrics
H-Index
i10 Index
Citation Counts
233
1,208
300,912
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* Total H IndexRankings
Ranking Based On Selection: 2
HEP
LHC
ATLA
Metrics
H-Index
i10 Index
Citation Counts
194
758
152,650
* Total H IndexRankings
Ranking Based On Selection: 3
Particle Physic
Metrics
H-Index
i10 Index
Citation Counts
172
852
143,089
* Total H IndexRankings
Ranking Based On Selection: 4
Physics
Thermal Models
particle Physic
Metrics
H-Index
i10 Index
Citation Counts
144
486
89,084
* Total H IndexRankings
Ranking Based On Selection: 5
Nuclear Physics
Particle Physics
Diamond Physics
Quantum Physic
Metrics
H-Index
i10 Index
Citation Counts
138
434
81,902
* Total H IndexRankings
Ranking Based On Selection: 6
High Energy physics
Grid Computing
Metrics
H-Index
i10 Index
Citation Counts
131
385
77,287
* Total H IndexRankings
Ranking Based On Selection: 7
High Energy Physic
Metrics
H-Index
i10 Index
Citation Counts
128
470
61,847
* Total H IndexRankings
Ranking Based On Selection: 8
gamma-ray astronomy
Cosmic Ray
Metrics
H-Index
i10 Index
Citation Counts
97
231
48,351
* Total H IndexRankings
Ranking Based On Selection: 9
Astroparticle Physics
High Energy Astrophysics
Gamma-ray Astronom
Metrics
H-Index
i10 Index
Citation Counts
91
217
47,479
* Total H IndexRankings
Ranking Based On Selection: 10
Physic
Metrics
H-Index
i10 Index
Citation Counts
91
261
29,296
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* Total H IndexRankings
Ranking Based On Selection: 11
Astrophysics
Cosmology
Astro-Particle Physic
Metrics
H-Index
i10 Index
Citation Counts
87
300
63,279
* Total H IndexRankings
Ranking Based On Selection: 12
Astrophysics
Observational Optical/Infrared/Radio Galaxy Evolution
Cloud Computing
Machine Learning
Statistic
Metrics
H-Index
i10 Index
Citation Counts
87
232
34,946
* Total H IndexRankings
Ranking Based On Selection: 13
Particle Physic
Metrics
H-Index
i10 Index
Citation Counts
86
325
27,133
* Total H IndexRankings
Ranking Based On Selection: 14
Astrophysic
Metrics
H-Index
i10 Index
Citation Counts
81
283
37,769
* Total H IndexRankings
Ranking Based On Selection: 15
nanophosphors
luminescence
cathodoluminescence
surface characterizatio
Metrics
H-Index
i10 Index
Citation Counts
75
649
28,639
* Total H IndexRankings
Ranking Based On Selection: 16
Astrophysics and Astro-particle Physic
Metrics
H-Index
i10 Index
Citation Counts
71
263
20,891
* Total H IndexRankings
Ranking Based On Selection: 17
General relativity
Relativistic astrophysics
Cosmolog
Metrics
H-Index
i10 Index
Citation Counts
57
204
10,652
* Total H IndexRankings
Ranking Based On Selection: 18
Open quantum systems
quantum information processing and communicatio
Metrics
H-Index
i10 Index
Citation Counts
54
185
32,093
* Total H IndexRankings
Ranking Based On Selection: 19
Cosmology
Radio telescopes
SKA
MeerKA
Metrics
H-Index
i10 Index
Citation Counts
54
116
9,452
* Total H IndexRankings
Ranking Based On Selection: 20
Physics
Astrophysic
Metrics
H-Index
i10 Index
Citation Counts
53
143
15,481
* Total H IndexRankings
Ranking Based On Selection: 21
thermal science
additive manufacturing
Atomic Layer Deposition
Cold Gas Dynamic Sprayin
Metrics
H-Index
i10 Index
Citation Counts
52
256
11,229
* Total H IndexRankings
Ranking Based On Selection: 22
Phosphors
Materials Science
Solid State Physics
Solar Cells
Chemistr
Metrics
H-Index
i10 Index
Citation Counts
51
220
9,448
* Total H IndexRankings
Ranking Based On Selection: 23
Low Noise Amplifiers
Gamma-ray astrophysic
Metrics
H-Index
i10 Index
Citation Counts
47
92
13,055
* Total H IndexRankings
Ranking Based On Selection: 24
Cosmology
Gravitatio
Metrics
H-Index
i10 Index
Citation Counts
45
93
6,272
* Total H IndexRankings
Ranking Based On Selection: 25
Galaxy formation and evolution
astronomy
astrophysic
Metrics
H-Index
i10 Index
Citation Counts
44
64
13,622
Sahal Yacoob
University of Cape Town
Cape Town, South Africa
Metrics
H-Index
i10-Index
Citation Counts
233
1,208
300,912
Loan Truong
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
194
758
152,650
Bruce Mellado
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
172
852
143,089
Jean Cleymans
University of Cape Town
Cape Town, South Africa
Metrics
H-Index
i10-Index
Citation Counts
144
486
89,084
Simon Connell
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
138
434
81,902
Nuclear Physics
Particle Physics
Diamond Physics
Quantum Physic
Zeblon Vilakazi
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
131
385
77,287
Joyful Mdhluli
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
128
470
61,847
Nukri Komin
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
97
231
48,351
Soebur Razzaque
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
91
217
47,479
Astroparticle Physics
High Energy Astrophysics
Gamma-ray Astronom
Roy Maartens
University of the Western Cape
Bellville, South Africa
Metrics
H-Index
i10-Index
Citation Counts
91
261
29,296
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
Sergio Colafrancesco
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
87
300
63,279
Astrophysics
Cosmology
Astro-Particle Physic
Mattia Vaccari
University of Cape Town
Cape Town, South Africa
Metrics
H-Index
i10-Index
Citation Counts
87
232
34,946
Astrophysics
Observational Optical/Infrared/Radio Galaxy Evolution
Cloud Computing
Machine Learning
Statistic
Tasnuva Chowdhury
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
86
325
27,133
Andrew Chen
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
81
283
37,769
HC Swart
University of the Free State
Bloemfontein, South Africa
Metrics
H-Index
i10-Index
Citation Counts
75
649
28,639
nanophosphors
luminescence
cathodoluminescence
surface characterizatio
Lerothodi L. Leeuw
University of the Western Cape
Bellville, South Africa
Metrics
H-Index
i10-Index
Citation Counts
71
263
20,891
SD Maharaj
Metrics
H-Index
i10-Index
Citation Counts
57
204
10,652
General relativity
Relativistic astrophysics
Cosmolog
Francesco Petruccione
Metrics
H-Index
i10-Index
Citation Counts
54
185
32,093
Open quantum systems
quantum information processing and communicatio
Mario G. Santos
University of the Western Cape
Bellville, South Africa
Metrics
H-Index
i10-Index
Citation Counts
54
116
9,452
Petrus Johannes Meintjes
University of the Free State
Bloemfontein, South Africa
Metrics
H-Index
i10-Index
Citation Counts
53
143
15,481
Tien-Chien Jen
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
52
256
11,229
thermal science
additive manufacturing
Atomic Layer Deposition
Cold Gas Dynamic Sprayin
Martin Ntwaeaborwa
University of the Witwatersrand
Johannesburg, South Africa
Metrics
H-Index
i10-Index
Citation Counts
51
220
9,448
Phosphors
Materials Science
Solid State Physics
Solar Cells
Chemistr
Paulus Kruger
North West University
Potchefstroom, South Africa
Metrics
H-Index
i10-Index
Citation Counts
47
92
13,055
Low Noise Amplifiers
Gamma-ray astrophysic
Peter Dunsby
University of Cape Town
Cape Town, South Africa
Metrics
H-Index
i10-Index
Citation Counts
45
93
6,272
Rosalind E Skelton
Metrics
H-Index
i10-Index
Citation Counts
44
64
13,622
Galaxy formation and evolution
astronomy
astrophysic