Niels Kjærgaard

1.8k total citations
49 papers, 1.3k citations indexed

About

Niels Kjærgaard is a scholar working on Atomic and Molecular Physics, and Optics, Artificial Intelligence and Spectroscopy. According to data from OpenAlex, Niels Kjærgaard has authored 49 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Atomic and Molecular Physics, and Optics, 7 papers in Artificial Intelligence and 5 papers in Spectroscopy. Recurrent topics in Niels Kjærgaard's work include Cold Atom Physics and Bose-Einstein Condensates (39 papers), Atomic and Subatomic Physics Research (18 papers) and Advanced Frequency and Time Standards (12 papers). Niels Kjærgaard is often cited by papers focused on Cold Atom Physics and Bose-Einstein Condensates (39 papers), Atomic and Subatomic Physics Research (18 papers) and Advanced Frequency and Time Standards (12 papers). Niels Kjærgaard collaborates with scholars based in New Zealand, Denmark and United States. Niels Kjærgaard's co-authors include Michael Drewsen, E. S. Polzik, Daniel Oblak, J. Appel, Amita B. Deb, Patrick Windpassinger, Liv Hornekær, Ulrich B. Hoff, Margaret R. Christoffersen and J. Christoffersen and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Physical Review Letters.

In The Last Decade

Niels Kjærgaard

48 papers receiving 1.2k citations

Peers

Niels Kjærgaard

AMPO

SPECT

EEE

Chengpu Liu China

Rudolf Loidl France

Jonas Keller Germany

Lars Rippe Sweden

Christoph Ellert Switzerland

Tetsuya Watanabe Japan

Stephen A. Lynch United Kingdom

A. Casaburi Italy

Paula Wahlgren Sweden

Thomas Böttger United States

Chengpu Liu China

Niels Kjærgaard

1.1k ×1.0

AMPO

244 ×0.6

119 ×1.0

SPECT

50 ×0.6

289 ×4.0

EEE

Citations per year, relative to Niels Kjærgaard Niels Kjærgaard (= 1×) peers Chengpu Liu

Countries citing papers authored by Niels Kjærgaard

Since Specialization

Citations

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

Fields of papers citing papers by Niels Kjærgaard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Niels Kjærgaard

This figure shows the co-authorship network connecting the top 25 collaborators of Niels Kjærgaard. A scholar is included among the top collaborators of Niels Kjærgaard 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 Niels Kjærgaard. Niels Kjærgaard 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

Simula, Tapio, Niels Kjærgaard, & Tilman Pfau. (2024). Topological transport of a classical droplet in a lattice of time. SHILAP Revista de lepidopterología. 4(4). 1 indexed citations

Elliott, Alexander H., et al.. (2024). Polarization-insensitive microwave electrometry using Rydberg atoms. Physical Review Applied. 21(4). 5 indexed citations

Deb, Amita B., et al.. (2023). Distant RF field sensing with a passive Rydberg-atomic transducer. Applied Physics Letters. 123(14). 7 indexed citations

Kjærgaard, Niels. (2023). Peeking and poking at atoms with laser light. 72(2). 41–44.

Kjærgaard, Niels. (2021). Effects of quantum mechanical identity in particle scattering: experimental observations (and lack thereof). Journal of the Royal Society of New Zealand. 51(3-4). 489–512. 1 indexed citations

Kjærgaard, Niels, et al.. (2020). A digital feedback controller for stabilizing large electric currents to the ppm level for Feshbach resonance studies. Review of Scientific Instruments. 91(3). 34705–34705. 15 indexed citations

Tiesinga, Eite, et al.. (2018). Observation of bound state self-interaction in a nano-eV atom collider. Nature Communications. 9(1). 4895–4895. 12 indexed citations

Tiesinga, Eite, et al.. (2017). Dispersive optical detection of magnetic Feshbach resonances in ultracold gases. Physical review. A. 96(2). 4 indexed citations

Tiesinga, Eite, et al.. (2016). Multiple scattering dynamics of fermions at an isolated p-wave resonance. Nature Communications. 7(1). 12069–12069. 12 indexed citations

10.

Deb, Amita B., et al.. (2013). Dispersive probing of driven pseudospin dynamics in a gradient field. Physical Review A. 88(6). 5 indexed citations

11.

Deb, Amita B., et al.. (2012). Laser based accelerator for ultracold atoms. Optics Letters. 37(6). 1085–1085. 15 indexed citations

12.

Appel, J., Patrick Windpassinger, Daniel Oblak, et al.. (2008). Quantum noise squeezing and entanglement on the atomic clock transition. arXiv (Cornell University). 1 indexed citations

13.

Windpassinger, Patrick, Daniel Oblak, Plamen G. Petrov, et al.. (2008). Nondestructive Probing of Rabi Oscillations on the Cesium Clock Transition near the Standard Quantum Limit. Physical Review Letters. 100(10). 103601–103601. 51 indexed citations

14.

Windpassinger, Patrick, Daniel Oblak, Ulrich B. Hoff, Niels Kjærgaard, & E. S. Polzik. (2008). Inhomogeneous Light Shift Effects on Atomic Quantum State Evolution in Non-Destructive Measurements. 9 indexed citations

15.

Kjærgaard, Niels, et al.. (2004). Imaging ofsanddPartial-Wave Interference in Quantum Scattering of Identical Bosonic Atoms. Physical Review Letters. 93(17). 173201–173201. 75 indexed citations

16.

Drewsen, Michael, et al.. (2004). Dynamically excited single-component ion Coulomb crystals in linear Paul traps. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 532(1-2). 237–240. 1 indexed citations

17.

Hornekær, Liv, et al.. (2001). Structural Properties of Two-Component Coulomb Crystals in Linear Paul Traps. Physical Review Letters. 86(10). 1994–1997. 123 indexed citations

18.

Kjærgaard, Niels & Michael Drewsen. (2001). Crystalline beam emulations in a pulse-excited linear Paul trap. Physics of Plasmas. 8(4). 1371–1375. 20 indexed citations

19.

Kjærgaard, Niels, et al.. (2000). Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization. Applied Physics B. 71(2). 207–210. 96 indexed citations

20.

Kjærgaard, Niels, P. D. Bowe, Liv Hornekær, et al.. (2000). Recent results from laser cooling experiments in ASTRID – real-time imaging of ion beams. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 441(1-2). 196–202. 3 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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