Robert W. Spekkens

10.2k total citations · 2 hit papers
85 papers, 5.9k citations indexed

About

Robert W. Spekkens is a scholar working on Atomic and Molecular Physics, and Optics, Artificial Intelligence and Statistical and Nonlinear Physics. According to data from OpenAlex, Robert W. Spekkens has authored 85 papers receiving a total of 5.9k indexed citations (citations by other indexed papers that have themselves been cited), including 81 papers in Atomic and Molecular Physics, and Optics, 66 papers in Artificial Intelligence and 21 papers in Statistical and Nonlinear Physics. Recurrent topics in Robert W. Spekkens's work include Quantum Mechanics and Applications (75 papers), Quantum Information and Cryptography (63 papers) and Quantum Computing Algorithms and Architecture (28 papers). Robert W. Spekkens is often cited by papers focused on Quantum Mechanics and Applications (75 papers), Quantum Information and Cryptography (63 papers) and Quantum Computing Algorithms and Architecture (28 papers). Robert W. Spekkens collaborates with scholars based in Canada, United Kingdom and Australia. Robert W. Spekkens's co-authors include Iman Marvian, Terry Rudolph, Stephen D. Bartlett, Gilad Gour, Matthew Leifer, David Schmid, Michał Horodecki, Fernando G. S. L. Brandão, Joseph M. Renes and Jonathan Oppenheim and has published in prestigious journals such as Physical Review Letters, Nature Communications and SHILAP Revista de lepidopterología.

In The Last Decade

Robert W. Spekkens

83 papers receiving 5.7k 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.

Reference frames, superselection rules, and quantum information

2007 496 citations Robert W. Spekkens et al. profile →
Resource Theory of Quantum States Out of Thermal Equilibrium

2013 414 citations Robert W. Spekkens et al. Physical Review Letters profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Robert W. Spekkens Canada	36	5.3k	4.7k	1.5k	437	272	85	5.9k
Adán Cabello Spain	39	6.1k 1.2×	5.6k 1.2×	800 0.5×	395 0.9×	267 1.0×	231	6.5k
Stefano Pironio Belgium	35	8.0k 1.5×	7.6k 1.6×	1.0k 0.7×	273 0.6×	434 1.6×	75	8.5k
Christopher A. Fuchs United States	31	6.6k 1.3×	6.6k 1.4×	696 0.5×	301 0.7×	269 1.0×	95	7.6k
Stephanie Wehner Netherlands	38	7.2k 1.4×	6.9k 1.5×	1.3k 0.8×	193 0.4×	350 1.3×	130	8.6k
Jonathan Barrett United Kingdom	24	3.1k 0.6×	2.7k 0.6×	651 0.4×	339 0.8×	219 0.8×	47	3.3k
Pekka Lahti Finland	24	2.3k 0.4×	1.8k 0.4×	933 0.6×	238 0.5×	331 1.2×	139	2.9k
Lucién Hardy United Kingdom	26	4.3k 0.8×	3.9k 0.8×	546 0.4×	285 0.7×	151 0.6×	55	4.5k
Paul Busch Germany	33	3.5k 0.7×	2.1k 0.5×	1.1k 0.7×	266 0.6×	305 1.1×	124	4.3k
Nicolas Brunner Switzerland	54	10.4k 2.0×	9.7k 2.1×	2.1k 1.4×	218 0.5×	347 1.3×	177	11.4k
Giacomo Mauro D’Ariano Italy	44	6.3k 1.2×	6.4k 1.4×	948 0.6×	221 0.5×	546 2.0×	249	7.5k

Countries citing papers authored by Robert W. Spekkens

Since Specialization

Citations

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

Fields of papers citing papers by Robert W. Spekkens

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert W. Spekkens. 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 Robert W. Spekkens. The network helps show where Robert W. Spekkens may publish in the future.

Co-authorship network of co-authors of Robert W. Spekkens

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

All Works

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20 of 20 papers shown

Kissinger, Aleks, et al.. (2025). Compositional Causal Identification from Imperfect or Disturbing Observations. Entropy. 27(7). 732–732. 1 indexed citations

Schmid, David, John H. Selby, Matthew F. Pusey, & Robert W. Spekkens. (2024). A structure theorem for generalized-noncontextual ontological models. Quantum. 8. 1283–1283. 10 indexed citations

Polino, Emanuele, Davide Poderini, Iris Agresti, et al.. (2023). Experimental nonclassicality in a causal network without assuming freedom of choice. Nature Communications. 14(1). 909–909. 13 indexed citations

Schmid, David, et al.. (2023). Understanding the interplay of entanglement and nonlocality: motivating and developing a new branch of entanglement theory. Quantum. 7. 1194–1194. 4 indexed citations

Spekkens, Robert W., et al.. (2023). Monotones in General Resource Theories. arXiv (Cornell University). 5. 7–7. 10 indexed citations

Leifer, Matthew, et al.. (2023). Aspects of the phenomenology of interference that are genuinely nonclassical. Physical review. A. 108(2). 17 indexed citations

Selby, John H., David Schmid, Elie Wolfe, et al.. (2023). Contextuality without Incompatibility. Physical Review Letters. 130(23). 230201–230201. 17 indexed citations

Cameron, Andrew, et al.. (2022). Experimentally bounding deviations from quantum theory for a photonic three-level system using theory-agnostic tomography. Physical review. A. 105(3). 10 indexed citations

Leifer, Matthew, et al.. (2022). What is Nonclassical about Uncertainty Relations?. Physical Review Letters. 129(24). 240401–240401. 19 indexed citations

10.

Chaves, Rafael, Emanuele Polino, Davide Poderini, et al.. (2021). Causal Networks and Freedom of Choice in Bell’s Theorem. LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas). 21 indexed citations

11.

MacLean, Jean-Philippe W., et al.. (2017). Quantum-coherent mixtures of causal relations. Nature Communications. 8(1). 15149–15149. 29 indexed citations

12.

Coecke, Bob, T. A. Fritz, & Robert W. Spekkens. (2016). A mathematical theory of resources. Information and Computation. 250. 59–86. 165 indexed citations

13.

Mazurek, Michael D., Matthew F. Pusey, Ravi Kunjwal, Kevin J. Resch, & Robert W. Spekkens. (2016). An experimental test of noncontextuality without unphysical idealizations. Nature Communications. 7(1). ncomms11780–ncomms11780. 156 indexed citations

14.

Kunjwal, Ravi & Robert W. Spekkens. (2015). From the Kochen-Specker Theorem to Noncontextuality Inequalities without Assuming Determinism. Physical Review Letters. 115(11). 110403–110403. 53 indexed citations

15.

Marvian, Iman & Robert W. Spekkens. (2014). Extending Noether’s theorem by quantifying the asymmetry of quantum states. Nature Communications. 5(1). 3821–3821. 221 indexed citations

16.

Liang, Yeong-Cherng, Robert W. Spekkens, & Howard M. Wiseman. (2010). Specker's Parable of the Over-protective Seer: Implications for Contextuality, Nonlocality and Complementarity. arXiv (Cornell University). 1 indexed citations

17.

Spekkens, Robert W., et al.. (2009). Preparation Contextuality Powers Parity-Oblivious Multiplexing. Physical Review Letters. 102(1). 10401–10401. 129 indexed citations

18.

Spekkens, Robert W.. (2008). Negativity and Contextuality are Equivalent Notions of Nonclassicality. Physical Review Letters. 101(2). 20401–20401. 168 indexed citations

19.

Kribs, David W. & Robert W. Spekkens. (2006). Quantum error-correcting subsystems are unitarily recoverable subsystems (7 pages). Physical Review A. 74(4). 42329. 1 indexed citations

20.

Leifer, Matthew & Robert W. Spekkens. (2005). Pre- and Post-Selection Paradoxes and Contextuality in Quantum Mechanics. Physical Review Letters. 95(20). 200405–200405. 30 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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