Christopher Portmann

913 total citations · 1 hit paper
8 papers, 353 citations indexed

About

Christopher Portmann is a scholar working on Artificial Intelligence, Atomic and Molecular Physics, and Optics and Computational Theory and Mathematics. According to data from OpenAlex, Christopher Portmann has authored 8 papers receiving a total of 353 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Artificial Intelligence, 3 papers in Atomic and Molecular Physics, and Optics and 2 papers in Computational Theory and Mathematics. Recurrent topics in Christopher Portmann's work include Quantum Computing Algorithms and Architecture (4 papers), Quantum Information and Cryptography (4 papers) and Cryptography and Data Security (3 papers). Christopher Portmann is often cited by papers focused on Quantum Computing Algorithms and Architecture (4 papers), Quantum Information and Cryptography (4 papers) and Cryptography and Data Security (3 papers). Christopher Portmann collaborates with scholars based in Switzerland, United States and Singapore. Christopher Portmann's co-authors include Renato Renner, Anindya De, Thomas Vidick, Marco Tomamichel, Nicolas Gisin, Charles Ci Wen Lim, Lídia del Rio, Akinori Kawachi, Ueli Maurer and Björn Tackmann and has published in prestigious journals such as Reviews of Modern Physics, IEEE Transactions on Information Theory and SIAM Journal on Computing.

In The Last Decade

Christopher Portmann

8 papers receiving 328 citations

Hit Papers

align trajectories

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.

Security in quantum cryptography

2022 180 citations Christopher Portmann, Renato Renner Reviews of Modern Physics profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Christopher Portmann Switzerland	5	312	246	31	19	16	8	353
Zhengwen Cao China	12	397 1.3×	303 1.2×	30 1.0×	31 1.6×	16 1.0×	43	445
Anna Pappa Germany	12	477 1.5×	392 1.6×	13 0.4×	24 1.3×	21 1.3×	24	520
Marco Avesani Italy	10	265 0.8×	251 1.0×	25 0.8×	48 2.5×	16 1.0×	26	330
Matej Pivoluska Slovakia	11	317 1.0×	272 1.1×	34 1.1×	31 1.6×	33 2.1×	24	352
Matthias F. Brandl Austria	4	237 0.8×	162 0.7×	13 0.4×	31 1.6×	39 2.4×	8	300
Ernest Y.-Z. Tan Canada	8	373 1.2×	341 1.4×	11 0.4×	15 0.8×	13 0.8×	22	417
Zhaoxu Ji China	11	424 1.4×	354 1.4×	12 0.4×	15 0.8×	15 0.9×	15	450
Toyohiro Tsurumaru Japan	7	240 0.8×	189 0.8×	28 0.9×	65 3.4×	15 0.9×	27	289
Thomas Lawson France	7	312 1.0×	224 0.9×	9 0.3×	27 1.4×	40 2.5×	9	336
Pierre-Luc Dallaire-Demers Germany	6	356 1.1×	126 0.5×	21 0.7×	49 2.6×	55 3.4×	6	389

Countries citing papers authored by Christopher Portmann

Since Specialization

Citations

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

Fields of papers citing papers by Christopher Portmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Christopher Portmann

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

All Works

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8 of 8 papers shown

1.

Portmann, Christopher & Renato Renner. (2022). Security in quantum cryptography. Reviews of Modern Physics. 94(2). 180 indexed citations breakdown →

2.

Portmann, Christopher, et al.. (2019). Composable security in relativistic quantum cryptography. Repository for Publications and Research Data (ETH Zurich). 12 indexed citations

3.

Maurer, Ueli, et al.. (2018). Toward an algebraic theory of systems. Theoretical Computer Science. 747. 1–25. 1 indexed citations

4.

Portmann, Christopher. (2014). Key Recycling in Authentication. IEEE Transactions on Information Theory. 60(7). 4383–4396. 35 indexed citations

5.

Lim, Charles Ci Wen, Christopher Portmann, Marco Tomamichel, Renato Renner, & Nicolas Gisin. (2013). Device-Independent Quantum Key Distribution with Local Bell Test. Repository for Publications and Research Data (ETH Zurich). 51 indexed citations

6.

De, Anindya, Christopher Portmann, Thomas Vidick, & Renato Renner. (2012). Trevisan's Extractor in the Presence of Quantum Side Information. SIAM Journal on Computing. 41(4). 915–940. 71 indexed citations

7.

De, Anindya, Christopher Portmann, Thomas Vidick, & Renato Renner. (2009). Trevisan's extractor in the presence of quantum side information. DSpace@MIT (Massachusetts Institute of Technology). 2 indexed citations

8.

Kawachi, Akinori & Christopher Portmann. (2007). Quantum Asymmetric-Key Cryptosystems Secure Against Computationally Unbounded Adversaries(Theory of Computer Science and Its Applications). Kyoto University Research Information Repository (Kyoto University). 1554. 117–124. 1 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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