Young-Sik Ra

594 total citations
33 papers, 398 citations indexed

About

Young-Sik Ra is a scholar working on Artificial Intelligence, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering. According to data from OpenAlex, Young-Sik Ra has authored 33 papers receiving a total of 398 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Artificial Intelligence, 25 papers in Atomic and Molecular Physics, and Optics and 5 papers in Electrical and Electronic Engineering. Recurrent topics in Young-Sik Ra's work include Quantum Information and Cryptography (32 papers), Quantum Mechanics and Applications (17 papers) and Quantum optics and atomic interactions (11 papers). Young-Sik Ra is often cited by papers focused on Quantum Information and Cryptography (32 papers), Quantum Mechanics and Applications (17 papers) and Quantum optics and atomic interactions (11 papers). Young-Sik Ra collaborates with scholars based in South Korea, Germany and France. Young-Sik Ra's co-authors include Yoon-Ho Kim, Hyang‐Tag Lim, Osung Kwon, Yong‐Su Kim, Andreas Buchleitner, Florian Mintert, Malte C. Tichy, Nicolas Treps, Joonwoo Bae and Claude Fabre and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Physical Review Letters and Nature Communications.

In The Last Decade

Young-Sik Ra

31 papers receiving 387 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Young-Sik Ra South Korea 12 357 324 46 22 21 33 398
Gabriel A. Durkin United States 10 442 1.2× 440 1.4× 44 1.0× 25 1.1× 15 0.7× 12 492
L. Slodička Czechia 12 288 0.8× 377 1.2× 42 0.9× 15 0.7× 17 0.8× 32 403
Justin Dove United States 5 458 1.3× 323 1.0× 170 3.7× 17 0.8× 18 0.9× 6 523
G. Khoury United States 6 268 0.8× 288 0.9× 34 0.7× 13 0.6× 18 0.9× 10 325
Alexander E. Ulanov Russia 9 313 0.9× 363 1.1× 78 1.7× 17 0.8× 8 0.4× 21 416
Qingqing Sun United States 10 316 0.9× 419 1.3× 35 0.8× 21 1.0× 26 1.2× 21 446
Li-Chao Peng China 5 549 1.5× 461 1.4× 107 2.3× 9 0.4× 14 0.7× 8 613
Zachary Eldredge United States 8 346 1.0× 325 1.0× 39 0.8× 22 1.0× 6 0.3× 11 412
R. B. Dalton Australia 2 312 0.9× 333 1.0× 30 0.7× 17 0.8× 7 0.3× 2 367
Ilya A. Fedorov Russia 8 331 0.9× 363 1.1× 45 1.0× 16 0.7× 9 0.4× 14 413

Countries citing papers authored by Young-Sik Ra

Since Specialization
Citations

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

Fields of papers citing papers by Young-Sik Ra

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Young-Sik Ra. 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 Young-Sik Ra. The network helps show where Young-Sik Ra may publish in the future.

Co-authorship network of co-authors of Young-Sik Ra

This figure shows the co-authorship network connecting the top 25 collaborators of Young-Sik Ra. A scholar is included among the top collaborators of Young-Sik Ra 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 Young-Sik Ra. Young-Sik Ra 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.
Ra, Young-Sik, et al.. (2025). Generation of three-dimensional cluster entangled state. Nature Photonics. 19(5). 526–532. 6 indexed citations
2.
Park, Jiyong, et al.. (2023). Continuous-variable nonclassicality certification under coarse-grained measurement. Physical Review Research. 5(4). 5 indexed citations
3.
Ra, Young-Sik, et al.. (2023). Recovering quantum entanglement after its certification. Science Advances. 9(40). eadi5261–eadi5261. 2 indexed citations
4.
Ra, Young-Sik, Yin Cai, Vladyslav C. Usenko, et al.. (2021). Frequency-multiplexed entanglement for continuous-variable quantum key distribution. Photonics Research. 9(12). 2351–2351. 10 indexed citations
5.
Ra, Young-Sik, et al.. (2017). Tomography of mode-tunable coherent single-photon subtractor. QW5C.3–QW5C.3. 1 indexed citations
6.
Ra, Young-Sik, et al.. (2017). Tomography of mode-tunable coherent single-photon subtractor. 1–1. 6 indexed citations
7.
Ra, Young-Sik, Malte C. Tichy, Hyang‐Tag Lim, et al.. (2017). Reversed interplay of quantum interference and which-way information in multiphoton entangled states. Physical review. A. 96(2). 3 indexed citations
8.
Ra, Young-Sik, Hyang‐Tag Lim, & Yoon-Ho Kim. (2016). Remote preparation of three-photon entangled states via single-photon measurement. Physical review. A. 94(4). 23 indexed citations
9.
Ra, Young-Sik, et al.. (2015). Phase and amplitude controlled heralding of N00N states. Optics Express. 23(24). 30807–30807. 7 indexed citations
10.
Lim, Hyang‐Tag, et al.. (2014). Fundamental Bounds in Measurements for Estimating Quantum States. Physical Review Letters. 113(2). 20504–20504. 17 indexed citations
11.
Ra, Young-Sik, Malte C. Tichy, Hyang‐Tag Lim, et al.. (2014). Nonmonotonic quantum-to-classical transition in multiparticle interference. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 8997. 89970I–89970I. 4 indexed citations
12.
Ra, Young-Sik, Malte C. Tichy, Hyang‐Tag Lim, et al.. (2014). Comment on ‘Non-monotonic projection probabilities as a function of distinguishability’. New Journal of Physics. 16(11). 118003–118003. 3 indexed citations
13.
Ra, Young-Sik, Malte C. Tichy, Hyang‐Tag Lim, et al.. (2013). Observation of detection-dependent multi-photon coherence times. Nature Communications. 4(1). 2451–2451. 31 indexed citations
14.
Kwon, Osung, et al.. (2013). Time-bin entangled photon pairs from spontaneous parametric down-conversion pumped by a cw multi-mode diode laser. Optics Express. 21(21). 25492–25492. 25 indexed citations
15.
Ra, Young-Sik, Malte C. Tichy, Hyang‐Tag Lim, et al.. (2013). Nonmonotonic quantum-to-classical transition in multiparticle interference. Proceedings of the National Academy of Sciences. 110(4). 1227–1231. 53 indexed citations
16.
Lim, Hyang‐Tag, Yong‐Su Kim, Young-Sik Ra, Joonwoo Bae, & Yoon-Ho Kim. (2012). Experimental realization of an approximate transpose operation for qutrit systems using a structural physical approximation. Physical Review A. 86(4). 18 indexed citations
17.
Lim, Hyang‐Tag, Yong‐Su Kim, Young-Sik Ra, Joonwoo Bae, & Yoon-Ho Kim. (2011). Experimental Realization of an Approximate Partial Transpose for Photonic Two-Qubit Systems. Physical Review Letters. 107(16). 160401–160401. 26 indexed citations
18.
Lim, Hyang‐Tag, Young-Sik Ra, Yong‐Su Kim, Joonwoo Bae, & Yoon-Ho Kim. (2011). Experimental implementation of the universal transpose operation using the structural physical approximation. Physical Review A. 83(2). 12 indexed citations
19.
Kim, Yong‐Su, et al.. (2010). Experimental verification of the commutation relation for Pauli spin operators using single-photon quantum interference. Physics Letters A. 374(43). 4393–4396. 11 indexed citations
20.
Kwon, Osung, Young-Sik Ra, & Yoon-Ho Kim. (2009). Coherence properties of spontaneous parametric down-conversion pumped by a multi-mode cw diode laser. Optics Express. 17(15). 13059–13059. 22 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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