Ajith Perera

1.7k total citations
67 papers, 1.3k citations indexed

About

Ajith Perera is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Materials Chemistry. According to data from OpenAlex, Ajith Perera has authored 67 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in Atomic and Molecular Physics, and Optics, 19 papers in Spectroscopy and 19 papers in Materials Chemistry. Recurrent topics in Ajith Perera's work include Advanced Chemical Physics Studies (58 papers), Spectroscopy and Quantum Chemical Studies (25 papers) and Photochemistry and Electron Transfer Studies (8 papers). Ajith Perera is often cited by papers focused on Advanced Chemical Physics Studies (58 papers), Spectroscopy and Quantum Chemical Studies (25 papers) and Photochemistry and Electron Transfer Studies (8 papers). Ajith Perera collaborates with scholars based in United States, Russia and Hungary. Ajith Perera's co-authors include Rodney J. Bartlett, Victor F. Lotrich, Thomas J. Watson, Péter G. Szalay, Young Choon Park, Monika Musiał, Prakash Verma, Erik Deumens, Duminda S. Ranasinghe and N. Flocke and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Journal of Chemical Physics and Physical review. B, Condensed matter.

In The Last Decade

Ajith Perera

63 papers receiving 1.3k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ajith Perera United States 20 1.0k 307 285 260 171 67 1.3k
Diptarka Hait United States 19 999 1.0× 446 1.5× 214 0.8× 351 1.4× 246 1.4× 42 1.6k
Daniel Kats Germany 21 1.2k 1.2× 405 1.3× 255 0.9× 266 1.0× 181 1.1× 53 1.4k
Nicholas J. Russ United States 7 741 0.7× 332 1.1× 402 1.4× 327 1.3× 119 0.7× 8 1.2k
Kasper Kristensen Denmark 22 1.3k 1.3× 403 1.3× 539 1.9× 329 1.3× 158 0.9× 33 1.8k
Achintya Kumar Dutta India 19 725 0.7× 238 0.8× 173 0.6× 216 0.8× 131 0.8× 70 1.1k
Filip Pawłowski United States 26 1.1k 1.1× 348 1.1× 499 1.8× 299 1.1× 140 0.8× 60 1.7k
Ryan M. Richard United States 18 795 0.8× 430 1.4× 198 0.7× 243 0.9× 140 0.8× 34 1.2k
Stefan Knecht Switzerland 26 1.3k 1.3× 390 1.3× 308 1.1× 288 1.1× 203 1.2× 55 1.8k
Spencer R. Pruitt United States 13 1.0k 1.0× 383 1.2× 405 1.4× 272 1.0× 139 0.8× 16 1.5k
Benjamin Mintz United States 10 686 0.7× 394 1.3× 263 0.9× 335 1.3× 109 0.6× 15 1.2k

Countries citing papers authored by Ajith Perera

Since Specialization
Citations

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

Fields of papers citing papers by Ajith Perera

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ajith Perera. 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 Ajith Perera. The network helps show where Ajith Perera may publish in the future.

Co-authorship network of co-authors of Ajith Perera

This figure shows the co-authorship network connecting the top 25 collaborators of Ajith Perera. A scholar is included among the top collaborators of Ajith Perera 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 Ajith Perera. Ajith Perera is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Perera, Ajith, et al.. (2024). A comparison of QTP functionals against coupled-cluster methods for EAs of small organic molecules. The Journal of Chemical Physics. 160(1). 2 indexed citations
2.
Perera, Ajith, et al.. (2024). An “ultimate” coupled cluster method based entirely on T2. The Journal of Chemical Physics. 161(18). 1 indexed citations
3.
Perera, Ajith, et al.. (2023). Excited states with pair coupled cluster doubles tailored coupled cluster theory. The Journal of Chemical Physics. 159(9). 14 indexed citations
4.
Nguyen, Thanh Lam, Jozef Peeters, Jean‐François Müller, et al.. (2023). Methanediol from cloud-processed formaldehyde is only a minor source of atmospheric formic acid. Proceedings of the National Academy of Sciences. 120(48). e2304650120–e2304650120. 3 indexed citations
5.
Bokhan, Denis, et al.. (2021). Explicitly correlated Fock-space coupled-cluster singles and doubles method for (1,1), (0,2), and (2,0) sectors. The Journal of Chemical Physics. 155(1). 14107–14107. 4 indexed citations
6.
Nguyen, Thanh Lam & Ajith Perera. (2021). The reaction of H + CH 2 O: addition vs. abstraction. Molecular Physics. 119(21-22).
7.
Bartlett, Rodney J., et al.. (2020). Index of multi-determinantal and multi-reference character in coupled-cluster theory. The Journal of Chemical Physics. 153(23). 234103–234103. 23 indexed citations
8.
Park, Young Choon, Ajith Perera, & Rodney J. Bartlett. (2019). Equation of motion coupled-cluster for core excitation spectra: Two complementary approaches. The Journal of Chemical Physics. 151(16). 164117–164117. 43 indexed citations
9.
Lutz, Jesse J., Marcel Nooijen, Ajith Perera, & Rodney J. Bartlett. (2018). Reference dependence of the two-determinant coupled-cluster method for triplet and open-shell singlet states of biradical molecules. The Journal of Chemical Physics. 148(16). 164102–164102. 8 indexed citations
10.
Lutz, Jesse J., Xiaofeng Duan, Duminda S. Ranasinghe, et al.. (2018). Valence and charge-transfer optical properties for some SinCm(m,n ≤ 12) clusters: Comparing TD-DFT, complete-basis-limit EOMCC, and benchmarks from spectroscopy. The Journal of Chemical Physics. 148(17). 174309–174309.
11.
Johnson, Christopher J., Duminda S. Ranasinghe, Ajith Perera, et al.. (2018). Vibrational Characterization of Radical Ion Adducts between Imidazole and CO2. The Journal of Physical Chemistry A. 122(15). 3805–3810. 4 indexed citations
12.
Margraf, Johannes T., Ajith Perera, Jesse J. Lutz, & Rodney J. Bartlett. (2017). Single-reference coupled cluster theory for multi-reference problems. The Journal of Chemical Physics. 147(18). 184101–184101. 24 indexed citations
13.
Sanders, Beverly A., Jason N. Byrd, Victor F. Lotrich, et al.. (2017). Aces4: A Platform for Computational Chemistry Calculations with Extremely Large Block-Sparse Arrays. 2 indexed citations
14.
Bokhan, Denis, et al.. (2017). Excitation energies with spin-orbit couplings using equation-of-motion coupled-cluster singles and doubles eigenvectors. The Journal of Chemical Physics. 147(16). 164118–164118. 10 indexed citations
15.
Perera, Ajith, et al.. (2016). Assessing the distinguishable cluster approximation based on the triple bond-breaking in the nitrogen molecule. The Journal of Chemical Physics. 144(12). 124117–124117. 20 indexed citations
16.
Szalay, Péter G., Thomas J. Watson, Ajith Perera, Victor F. Lotrich, & Rodney J. Bartlett. (2013). Benchmark Studies on the Building Blocks of DNA. 3. Watson–Crick and Stacked Base Pairs. The Journal of Physical Chemistry A. 117(15). 3149–3157. 39 indexed citations
17.
Verma, Prakash, Ajith Perera, & Rodney J. Bartlett. (2011). Increasing the applicability of DFT I: Non-variational correlation corrections from Hartree–Fock DFT for predicting transition states. Chemical Physics Letters. 524. 10–15. 71 indexed citations
18.
Perera, Ajith, et al.. (2010). Ab initio simulation of UV/vis absorption spectra for atmospheric modeling: method design for medium-sized molecules. Physical Chemistry Chemical Physics. 12(33). 9726–9726. 3 indexed citations
19.
Perera, Ajith. (2010). What made possible the accurate calculations of NMR spin–spin coupling constants?. Molecular Physics. 108(21-23). 3017–3025. 11 indexed citations
20.
Lotrich, Victor F., et al.. (2008). Parallel implementation of electronic structure energy, gradient, and Hessian calculations. The Journal of Chemical Physics. 128(19). 194104–194104. 128 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Diptarka Hait Breakdown of academic impact, for papers by Daniel Kats Breakdown of academic impact, for papers by Nicholas J. Russ Breakdown of academic impact, for papers by Kasper Kristensen Breakdown of academic impact, for papers by Achintya Kumar Dutta Breakdown of academic impact, for papers by Filip Pawłowski Breakdown of academic impact, for papers by Ryan M. Richard Breakdown of academic impact, for papers by Stefan Knecht Breakdown of academic impact, for papers by Spencer R. Pruitt Breakdown of academic impact, for papers by Benjamin Mintz
Rankless by CCL
2026