Sayan Kar

6.2k total citations · 1 hit paper
119 papers, 4.7k citations indexed

About

Sayan Kar is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Statistical and Nonlinear Physics. According to data from OpenAlex, Sayan Kar has authored 119 papers receiving a total of 4.7k indexed citations (citations by other indexed papers that have themselves been cited), including 73 papers in Astronomy and Astrophysics, 69 papers in Nuclear and High Energy Physics and 21 papers in Statistical and Nonlinear Physics. Recurrent topics in Sayan Kar's work include Black Holes and Theoretical Physics (64 papers), Cosmology and Gravitation Theories (63 papers) and Advanced Differential Geometry Research (15 papers). Sayan Kar is often cited by papers focused on Black Holes and Theoretical Physics (64 papers), Cosmology and Gravitation Theories (63 papers) and Advanced Differential Geometry Research (15 papers). Sayan Kar collaborates with scholars based in India, United States and Israel. Sayan Kar's co-authors include G. K. Surya Prakash, Alain Goeppert, Raktim Sen, Jotheeswari Kothandaraman, Naresh Dadhich, Matt Visser, David Milstein, Soumitra SenGupta, B. Bhawal and Deshdeep Sahdev and has published in prestigious journals such as Journal of the American Chemical Society, Physical Review Letters and Accounts of Chemical Research.

In The Last Decade

Sayan Kar

117 papers receiving 4.6k citations

Hit Papers

Direct air capture of CO2 for solar fuel production in flow 2025 2026 2025 5 10 15 20 25
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.

  1. Direct air capture of CO2 for solar fuel production in flow
    2025 25 citations Sayan Kar, Subhajit Bhattacharjee et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sayan Kar India 37 1.9k 1.7k 1.2k 979 857 119 4.7k
Marco Baldi Italy 34 2.3k 1.2× 1.4k 0.8× 34 0.0× 121 0.1× 142 0.2× 109 3.5k
Saman Alavi Canada 45 335 0.2× 41 0.0× 148 0.1× 130 0.1× 1.7k 2.0× 187 7.2k
J. M. D. MacElroy Ireland 29 80 0.0× 94 0.1× 37 0.0× 351 0.4× 240 0.3× 76 2.5k
Wei Zuo China 43 963 0.5× 3.0k 1.7× 4 0.0× 1.2k 1.3× 134 0.2× 267 6.8k
Karl H. Becker Germany 30 350 0.2× 481 0.3× 45 0.0× 38 0.0× 26 0.0× 60 3.5k
Sugata P. Tan United States 27 134 0.1× 135 0.1× 21 0.0× 45 0.0× 104 0.1× 68 2.0k
Amit Majumdar India 26 71 0.0× 68 0.0× 44 0.0× 485 0.5× 462 0.5× 108 1.9k
Holger Ott Germany 37 98 0.1× 120 0.1× 20 0.0× 148 0.2× 348 0.4× 116 4.3k
Frank N. Keutsch United States 44 148 0.1× 27 0.0× 114 0.1× 60 0.1× 205 0.2× 149 6.2k
A. Williams United Kingdom 30 605 0.3× 154 0.1× 22 0.0× 18 0.0× 122 0.1× 147 3.0k

Countries citing papers authored by Sayan Kar

Since Specialization
Citations

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

Fields of papers citing papers by Sayan Kar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sayan Kar

This figure shows the co-authorship network connecting the top 25 collaborators of Sayan Kar. A scholar is included among the top collaborators of Sayan Kar 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 Sayan Kar. Sayan Kar 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.
Kar, Sayan, et al.. (2024). Novel regular black holes: geometry, source and shadow. General Relativity and Gravitation. 56(5). 8 indexed citations
2.
Bhatt, R. P., Anushree Roy, & Sayan Kar. (2023). Analog Raychaudhuri Equation in Mechanics. Resonance. 28(3). 389–410. 2 indexed citations
3.
Kar, Sayan, Motiar Rahaman, Virgil Andrei, et al.. (2023). Integrated capture and solar-driven utilization of CO2 from flue gas and air. Joule. 7(7). 1496–1514. 46 indexed citations
4.
5.
Kar, Sayan, Jie Luo, Michael Rauch, et al.. (2022). Dehydrogenative ester synthesis from enol ethers and water with a ruthenium complex catalyzing two reactions in synergy. Green Chemistry. 24(4). 1481–1487. 12 indexed citations
6.
Kar, Sayan. (2022). Curious variant of the Bronnikov-Ellis spacetime. Physical review. D. 105(2). 3 indexed citations
7.
Zhou, Quan‐Quan, You‐Quan Zou, Sayan Kar, et al.. (2021). Manganese-Pincer-Catalyzed Nitrile Hydration, α-Deuteration, and α-Deuterated Amide Formation via Metal Ligand Cooperation. ACS Catalysis. 11(16). 10239–10245. 24 indexed citations
8.
Kar, Sayan, Michael Rauch, Gregory Leitus, Yehoshoa Ben‐David, & David Milstein. (2021). Highly efficient additive-free dehydrogenation of neat formic acid. Nature Catalysis. 4(3). 193–201. 159 indexed citations
9.
Sen, Raktim, Alain Goeppert, Sayan Kar, & G. K. Surya Prakash. (2020). Hydroxide Based Integrated CO 2 Capture from Air and Conversion to Methanol. Journal of the American Chemical Society. 142(10). 4544–4549. 191 indexed citations
10.
Kar, Sayan, Michael Rauch, Amit Kumar, et al.. (2020). Selective Room-Temperature Hydrogenation of Amides to Amines and Alcohols Catalyzed by a Ruthenium Pincer Complex and Mechanistic Insight. ACS Catalysis. 10(10). 5511–5515. 44 indexed citations
11.
Kar, Sayan, et al.. (2019). Scalar quasinormal modes of a family of generalised Ellis--Bronnikov wormholes. arXiv (Cornell University). 2 indexed citations
12.
Shaikh, Rajibul, Sayan Kar, & Anirvan DasGupta. (2014). Evolution of geodesic congruences in a gravitationally collapsing scalar field background. Physical review. D. Particles, fields, gravitation, and cosmology. 90(12). 3 indexed citations
13.
Prabhu, Kartik, et al.. (2013). Higher order geometric flows on three-dimensional locally homogeneous spaces. Journal of Mathematical Physics. 54(1). 2 indexed citations
14.
Kar, Sayan, et al.. (2012). BACH FLOWS OF PRODUCT MANIFOLDS. International Journal of Geometric Methods in Modern Physics. 9(5). 1250039–1250039. 11 indexed citations
15.
Prabhu, Kartik, et al.. (2011). On higher order geometric and renormalization group flows. Journal of Geometry and Physics. 61(10). 1854–1867. 3 indexed citations
16.
Das, Ashmita, Sayan Kar, & Soumitra SenGupta. (2008). Stable two--brane models with a bulk scalar. arXiv (Cornell University). 1 indexed citations
17.
Pal, Supratik & Sayan Kar. (2007). de Sitter branes with bulk tachyon matter. arXiv (Cornell University). 3 indexed citations
18.
Visser, Matt, Sayan Kar, & Naresh Dadhich. (2003). Traversable Wormholes with Arbitrarily Small Energy Condition Violations. Physical Review Letters. 90(20). 201102–201102. 390 indexed citations
19.
Kar, Sayan, Soumitra SenGupta, & Sourav Sur. (2003). Static, spherically symmetric solutions, gravitational lensing, and perihelion precession in Einstein-Kalb-Ramond theory. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields. 67(4). 42 indexed citations
20.
Kar, Sayan, Shiraz Minwalla, Deepak Mishra, & Deshdeep Sahdev. (1995). Resonances in the transmission of massless scalar waves in a class of wormholes. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields. 51(4). 1632–1638. 25 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 Marco Baldi Breakdown of academic impact, for papers by Saman Alavi Breakdown of academic impact, for papers by J. M. D. MacElroy Breakdown of academic impact, for papers by Wei Zuo Breakdown of academic impact, for papers by Karl H. Becker Breakdown of academic impact, for papers by Sugata P. Tan Breakdown of academic impact, for papers by Amit Majumdar Breakdown of academic impact, for papers by Holger Ott Breakdown of academic impact, for papers by Frank N. Keutsch Breakdown of academic impact, for papers by A. Williams
Rankless by CCL
2026