Chaehyuk Ko

1.3k total citations · 1 hit paper
8 papers, 1.1k citations indexed

About

Chaehyuk Ko is a scholar working on Atomic and Molecular Physics, and Optics, Molecular Biology and Physical and Theoretical Chemistry. According to data from OpenAlex, Chaehyuk Ko has authored 8 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Atomic and Molecular Physics, and Optics, 4 papers in Molecular Biology and 4 papers in Physical and Theoretical Chemistry. Recurrent topics in Chaehyuk Ko's work include Spectroscopy and Quantum Chemical Studies (6 papers), Photochemistry and Electron Transfer Studies (4 papers) and Photoreceptor and optogenetics research (3 papers). Chaehyuk Ko is often cited by papers focused on Spectroscopy and Quantum Chemical Studies (6 papers), Photochemistry and Electron Transfer Studies (4 papers) and Photoreceptor and optogenetics research (3 papers). Chaehyuk Ko collaborates with scholars based in United States and Germany. Chaehyuk Ko's co-authors include Todd J. Martı́nez, Benjamin G. Levine, Jason Quenneville, Aaron M. Virshup, Taras V. Pogorelov, Beth A. Lindquist, Chutintorn Punwong, Sharon Hammes‐Schiffer, Seth Olsen and Alessandro Toniolo and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Chemical Physics and The Journal of Physical Chemistry B.

In The Last Decade

Chaehyuk Ko

8 papers receiving 1.1k citations

Hit Papers

Conical intersections and double excitations in time-depe... 2006 2026 2012 2019 2006 100 200 300 400 500
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. Conical intersections and double excitations in time-dependent density functional theory
    2006 551 citations Benjamin G. Levine, Chaehyuk Ko et al. Molecular Physics profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Chaehyuk Ko United States 8 717 436 240 232 203 8 1.1k
Е. В. Громов Germany 19 752 1.0× 355 0.8× 280 1.2× 229 1.0× 204 1.0× 45 1.1k
Javier Segarra‐Martí France 21 564 0.8× 465 1.1× 496 2.1× 153 0.7× 210 1.0× 47 1.1k
Aaron M. Virshup United States 11 607 0.8× 255 0.6× 296 1.2× 167 0.7× 384 1.9× 11 1.2k
Ivano Tavernelli Switzerland 22 846 1.2× 307 0.7× 406 1.7× 226 1.0× 445 2.2× 29 1.6k
Stefano Caprasecca Italy 18 592 0.8× 255 0.6× 276 1.1× 158 0.7× 169 0.8× 31 861
Jae Woo Park South Korea 18 492 0.7× 268 0.6× 268 1.1× 202 0.9× 275 1.4× 38 987
Jarosław J. Szymczak Austria 15 672 0.9× 511 1.2× 499 2.1× 145 0.6× 223 1.1× 26 1.2k
Axel Koslowski Germany 17 684 1.0× 469 1.1× 340 1.4× 413 1.8× 426 2.1× 31 1.4k
Roland Schanz Germany 10 491 0.7× 531 1.2× 96 0.4× 136 0.6× 249 1.2× 12 866
Daniel A. Horke United Kingdom 17 567 0.8× 292 0.7× 148 0.6× 143 0.6× 149 0.7× 45 923

Countries citing papers authored by Chaehyuk Ko

Since Specialization
Citations

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

Fields of papers citing papers by Chaehyuk Ko

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Chaehyuk Ko

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

All Works

8 of 8 papers shown
1.
Ko, Chaehyuk & Sharon Hammes‐Schiffer. (2013). Charge-Transfer Excited States and Proton Transfer in Model Guanine-Cytosine DNA Duplexes in Water. The Journal of Physical Chemistry Letters. 4(15). 2540–2545. 29 indexed citations
2.
Ko, Chaehyuk, Brian H. Solis, Alexander V. Soudackov, & Sharon Hammes‐Schiffer. (2012). Photoinduced Proton-Coupled Electron Transfer of Hydrogen-Bonded p-Nitrophenylphenol–Methylamine Complex in Solution. The Journal of Physical Chemistry B. 117(1). 316–325. 22 indexed citations
3.
Ko, Chaehyuk, Michael V. Pak, Chet Swalina, & Sharon Hammes‐Schiffer. (2011). Alternative wavefunction ansatz for including explicit electron-proton correlation in the nuclear-electronic orbital approach. The Journal of Chemical Physics. 135(5). 54106–54106. 19 indexed citations
4.
Ko, Chaehyuk, Aaron M. Virshup, & Todd J. Martı́nez. (2008). Electrostatic control of photoisomerization in the photoactive yellow protein chromophore: Ab initio multiple spawning dynamics. Chemical Physics Letters. 460(1-3). 272–277. 50 indexed citations
5.
Ko, Chaehyuk, David K. Malick, Dale A. Braden, Richard A. Friesner, & Todd J. Martı́nez. (2008). Pseudospectral time-dependent density functional theory. The Journal of Chemical Physics. 128(10). 104103–104103. 63 indexed citations
6.
Virshup, Aaron M., Chutintorn Punwong, Taras V. Pogorelov, et al.. (2008). Photodynamics in Complex Environments:Ab InitioMultiple Spawning Quantum Mechanical/Molecular Mechanical Dynamics. The Journal of Physical Chemistry B. 113(11). 3280–3291. 227 indexed citations
7.
Levine, Benjamin G., Chaehyuk Ko, Jason Quenneville, & Todd J. Martı́nez. (2006). Conical intersections and double excitations in time-dependent density functional theory. Molecular Physics. 104(5-7). 1039–1051. 551 indexed citations breakdown →
8.
Ko, Chaehyuk, Benjamin G. Levine, Alessandro Toniolo, et al.. (2003). Ab Initio Excited-State Dynamics of the Photoactive Yellow Protein Chromophore. Journal of the American Chemical Society. 125(42). 12710–12711. 100 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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