Helen van Aggelen

749 total citations
21 papers, 552 citations indexed

About

Helen van Aggelen is a scholar working on Atomic and Molecular Physics, and Optics, Condensed Matter Physics and Materials Chemistry. According to data from OpenAlex, Helen van Aggelen has authored 21 papers receiving a total of 552 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Atomic and Molecular Physics, and Optics, 4 papers in Condensed Matter Physics and 4 papers in Materials Chemistry. Recurrent topics in Helen van Aggelen's work include Advanced Chemical Physics Studies (14 papers), Spectroscopy and Quantum Chemical Studies (8 papers) and Quantum, superfluid, helium dynamics (6 papers). Helen van Aggelen is often cited by papers focused on Advanced Chemical Physics Studies (14 papers), Spectroscopy and Quantum Chemical Studies (8 papers) and Quantum, superfluid, helium dynamics (6 papers). Helen van Aggelen collaborates with scholars based in Belgium, United States and Canada. Helen van Aggelen's co-authors include Weitao Yang, Yang Yang, Brecht Verstichel, Dimitri Van Neck, Patrick Bultinck, Paul W. Ayers, Ward Poelmans, Stephan N. Steinmann, David L. Cooper and Neil Shenvi and has published in prestigious journals such as Physical Review Letters, The Journal of Chemical Physics and Scientific Reports.

In The Last Decade

Helen van Aggelen

21 papers receiving 550 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Helen van Aggelen Belgium	14	455	124	83	67	66	21	552
Florian Lorenzen Germany	4	459 1.0×	194 1.6×	111 1.3×	63 0.9×	35 0.5×	7	684
Nikitas I. Gidopoulos United Kingdom	16	586 1.3×	138 1.1×	76 0.9×	91 1.4×	104 1.6×	43	706
Martina Stella United Kingdom	10	398 0.9×	199 1.6×	96 1.2×	85 1.3×	40 0.6×	13	605
Naoki Nakatani Japan	7	452 1.0×	109 0.9×	51 0.6×	36 0.5×	96 1.5×	10	574
Janus J. Eriksen Denmark	16	484 1.1×	177 1.4×	59 0.7×	118 1.8×	46 0.7×	32	661
Lan Nguyen Tran Vietnam	14	466 1.0×	161 1.3×	101 1.2×	59 0.9×	130 2.0×	29	675
Stinne Høst Denmark	10	343 0.8×	90 0.7×	49 0.6×	68 1.0×	44 0.7×	10	437
Johanna I. Fuks United States	14	505 1.1×	79 0.6×	102 1.2×	102 1.5×	35 0.5×	18	566
Ida‐Marie Høyvik Norway	11	527 1.2×	176 1.4×	81 1.0×	125 1.9×	43 0.7×	29	667
Joseba Alberdi‐Rodriguez Spain	6	500 1.1×	202 1.6×	146 1.8×	52 0.8×	30 0.5×	9	678

Countries citing papers authored by Helen van Aggelen

Since Specialization

Citations

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

Fields of papers citing papers by Helen van Aggelen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helen van Aggelen. 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 Helen van Aggelen. The network helps show where Helen van Aggelen may publish in the future.

Co-authorship network of co-authors of Helen van Aggelen

This figure shows the co-authorship network connecting the top 25 collaborators of Helen van Aggelen. A scholar is included among the top collaborators of Helen van Aggelen 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 Helen van Aggelen. Helen van Aggelen 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

Aggelen, Helen van, Raivo Kolde, Yu Fan, et al.. (2019). A core genome approach that enables prospective and dynamic monitoring of infectious outbreaks. Scientific Reports. 9(1). 7808–7808. 8 indexed citations

Zhu, Tianyu, Piotr de Silva, Helen van Aggelen, & Troy Van Voorhis. (2016). Many-electron expansion: A density functional hierarchy for strongly correlated systems. Physical review. B.. 93(20). 16 indexed citations

Aggelen, Helen van & Garnet Kin‐Lic Chan. (2015). Single-particle energies and density of states in density functional theory. Molecular Physics. 113(13-14). 2018–2025. 3 indexed citations

Aggelen, Helen van, et al.. (2014). Linear-response time-dependent density-functional theory with pairing fields. The Journal of Chemical Physics. 140(18). 18A522–18A522. 34 indexed citations

Aggelen, Helen van, Yang Yang, & Weitao Yang. (2014). Exchange-correlation energy from pairing matrix fluctuation and the particle-particle random phase approximation. The Journal of Chemical Physics. 140(18). 18A511–18A511. 41 indexed citations

Shenvi, Neil, Helen van Aggelen, Yang Yang, & Weitao Yang. (2014). Tensor hypercontracted ppRPA: Reducing the cost of the particle-particle random phase approximation from O(r 6) to O(r 4). The Journal of Chemical Physics. 141(2). 24119–24119. 19 indexed citations

Yang, Yang, Helen van Aggelen, & Weitao Yang. (2013). Double, Rydberg and charge transfer excitations from pairing matrix fluctuation and particle-particle random phase approximation. The Journal of Chemical Physics. 139(22). 224105–224105. 53 indexed citations

Yang, Yang, et al.. (2013). Benchmark tests and spin adaptation for the particle-particle random phase approximation. The Journal of Chemical Physics. 139(17). 174110–174110. 43 indexed citations

Aggelen, Helen van, Yang Yang, & Weitao Yang. (2013). Exchange-correlation energy from pairing matrix fluctuation and the particle-particle random-phase approximation. Physical Review A. 88(3). 83 indexed citations

10.

Shenvi, Neil, Helen van Aggelen, Yang Yang, et al.. (2013). The tensor hypercontracted parametric reduced density matrix algorithm: Coupled-cluster accuracy with O(r4) scaling. The Journal of Chemical Physics. 139(5). 54110–54110. 14 indexed citations

11.

Verstichel, Brecht, Helen van Aggelen, Ward Poelmans, & Dimitri Van Neck. (2012). Variational Two-Particle Density Matrix Calculation for the Hubbard Model Below Half Filling Using Spin-Adapted Lifting Conditions. Physical Review Letters. 108(21). 213001–213001. 38 indexed citations

12.

Verstichel, Brecht, Helen van Aggelen, Ward Poelmans, Sebastian Wouters, & Dimitri Van Neck. (2012). Extensive v2DM study of the one-dimensional Hubbard model for large lattice sizes: Exploiting translational invariance and parity. Computational and Theoretical Chemistry. 1003. 12–21. 10 indexed citations

13.

Johnson, Paul A., Paul W. Ayers, Brecht Verstichel, Dimitri Van Neck, & Helen van Aggelen. (2012). The sharp-G N-representability condition. Computational and Theoretical Chemistry. 1003. 32–36. 2 indexed citations

14.

Aggelen, Helen van, Brecht Verstichel, Matthias Degroote, et al.. (2012). Extended random phase approximation method for atomic excitation energies from correlated and variationally optimized second-order density matrices. Computational and Theoretical Chemistry. 1003. 50–54. 14 indexed citations

15.

Aggelen, Helen van, Brecht Verstichel, Patrick Bultinck, Dimitri Van Neck, & Paul W. Ayers. (2012). Considerations on describing non-singlet spin states in variational second order density matrix methods. The Journal of Chemical Physics. 136(1). 14110–14110. 10 indexed citations

16.

Verstichel, Brecht, Helen van Aggelen, Dimitri Van Neck, Patrick Bultinck, & Stijn De Baerdemacker. (2011). A primal–dual semidefinite programming algorithm tailored to the variational determination of the two-body density matrix. Computer Physics Communications. 182(6). 1235–1244. 28 indexed citations

17.

Verstichel, Brecht, Helen van Aggelen, Dimitri Van Neck, Paul W. Ayers, & Patrick Bultinck. (2010). Variational density matrix optimization using semidefinite programming. Computer Physics Communications. 182(9). 2025–2028. 1 indexed citations

18.

Aggelen, Helen van, Brecht Verstichel, Patrick Bultinck, et al.. (2010). Chemical verification of variational second-order density matrix based potential energy surfaces for the N2 isoelectronic series. The Journal of Chemical Physics. 132(11). 114112–114112. 27 indexed citations

19.

Aggelen, Helen van, Patrick Bultinck, Brecht Verstichel, Dimitri Van Neck, & Paul W. Ayers. (2009). Incorrect diatomic dissociation in variational reduced density matrix theory arises from the flawed description of fractionally charged atoms. Physical Chemistry Chemical Physics. 11(27). 5558–5558. 38 indexed citations

20.

Verstichel, Brecht, Helen van Aggelen, Dimitri Van Neck, Paul W. Ayers, & Patrick Bultinck. (2009). Variational determination of the second-order density matrix for the isoelectronic series of beryllium, neon, and silicon. Physical Review A. 80(3). 57 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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