K. Kärkkäinen

875 total citations
26 papers, 697 citations indexed

About

K. Kärkkäinen is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Condensed Matter Physics. According to data from OpenAlex, K. Kärkkäinen has authored 26 papers receiving a total of 697 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Atomic and Molecular Physics, and Optics, 12 papers in Electrical and Electronic Engineering and 3 papers in Condensed Matter Physics. Recurrent topics in K. Kärkkäinen's work include Cold Atom Physics and Bose-Einstein Condensates (8 papers), Electromagnetic Simulation and Numerical Methods (8 papers) and Electromagnetic Scattering and Analysis (7 papers). K. Kärkkäinen is often cited by papers focused on Cold Atom Physics and Bose-Einstein Condensates (8 papers), Electromagnetic Simulation and Numerical Methods (8 papers) and Electromagnetic Scattering and Analysis (7 papers). K. Kärkkäinen collaborates with scholars based in Finland, Greece and Sweden. K. Kärkkäinen's co-authors include Ari Sihvola, K.I. Nikoskinen, S. M. Reimann, M.A. Stuchly, G. M. Kavoulakis, M. Manninen, Sami Ilvonen, K. Capelle, M. Koskinen and Magnus O. Borgh and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Physical Review B.

In The Last Decade

K. Kärkkäinen

25 papers receiving 649 citations

Peers

K. Kärkkäinen

EEE

AMPO

EOMM

Richard G. Geyer United States

F. Lera Spain

Stefanie Kroker Germany

Dejie Li China

Johannes Bühler Switzerland

K.I. Nikoskinen Finland

Cecil F. Hess United States

Ergün Şimşek United States

C. R. Buhler United States

Richard G. Geyer United States

K. Kärkkäinen

433 ×1.4

EEE

129 ×0.5

AMPO

186 ×0.9

236 ×1.9

175 ×1.7

EOMM

Citations per year, relative to K. Kärkkäinen K. Kärkkäinen (= 1×) peers Richard G. Geyer

Countries citing papers authored by K. Kärkkäinen

Since Specialization

Citations

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

Fields of papers citing papers by K. Kärkkäinen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Kärkkäinen

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

Kavoulakis, G. M., et al.. (2009). Mixtures of Bose Gases Confined in a Ring Potential. Physical Review Letters. 103(10). 100404–100404. 47 indexed citations

Kärkkäinen, K., et al.. (2008). Rotational properties of a mixture of two Bose gases. New Journal of Physics. 10(3). 33029–33029. 11 indexed citations

Kärkkäinen, K., A.D. Jackson, & G. M. Kavoulakis. (2008). Bright solitary waves in a Bose-Einstein condensate and their interactions. Physical Review A. 78(3). 1 indexed citations

Capelle, K., Magnus O. Borgh, K. Kärkkäinen, & S. M. Reimann. (2007). Energy Gaps and Interaction Blockade in Confined Quantum Systems. Physical Review Letters. 99(1). 10402–10402. 23 indexed citations

Kärkkäinen, K., et al.. (2007). Metastability of persistent currents in trapped gases of atoms. Physical Review A. 76(4). 10 indexed citations

Kärkkäinen, K., Magnus O. Borgh, M. Manninen, & S. M. Reimann. (2007). Magnetism in artificial lattices. The European Physical Journal D. 43(1-3). 225–228. 1 indexed citations

Ilvonen, Sami, et al.. (2005). Numerical assessment of induced ELF Currents in the human head due to the battery current of a digital mobile phone. Bioelectromagnetics. 26(8). 648–656. 16 indexed citations

Kärkkäinen, K., M. Koskinen, S. M. Reimann, & M. Manninen. (2005). Magnetism in one-dimensional quantum dot arrays. Physical Review B. 72(16). 6 indexed citations

Kärkkäinen, K., et al.. (2005). Two-dimensional extension of a novel FDTD technique for modeling dispersive lossy bi-isotropic media using the auxiliary differential equation method. IEEE Microwave and Wireless Components Letters. 15(5). 375–377. 18 indexed citations

10.

Kärkkäinen, K., M. Koskinen, S. M. Reimann, & M. Manninen. (2004). Density-functional theory of multicomponent quantum dots. Physical Review B. 70(19). 6 indexed citations

11.

Kärkkäinen, K., et al.. (2003). Studying 120° PBG waveguide bend using FDTD. Microwave and Optical Technology Letters. 39(4). 326–333. 6 indexed citations

12.

Kärkkäinen, K., M. Koskinen, S. M. Reimann, & M. Manninen. (2003). Exchange-correlation energy of a multicomponent two-dimensional electron gas. Physical review. B, Condensed matter. 68(20). 6 indexed citations

13.

Kärkkäinen, K.. (2003). On the finite-difference modelling of electromagnetic problems in structured lattices. Aaltodoc (Aalto University). 1 indexed citations

14.

Kärkkäinen, K., et al.. (2003). Limits for the effective permittivity of mixtures: numerical validation by the FDTD method. 5. 2640–2642. 3 indexed citations

15.

Kärkkäinen, K. & M.A. Stuchly. (2002). Frequency selective surface as a polarisation transformer. IEE Proceedings - Microwaves Antennas and Propagation. 149(5). 248–252. 39 indexed citations

16.

Kärkkäinen, K., et al.. (2002). Effective permittivity of a random mixture with spherical inclusions. 5. 2371–2373. 1 indexed citations

17.

Kärkkäinen, K., et al.. (2001). Analysis of a three-dimensional dielectric mixture with finite difference method. IEEE Transactions on Geoscience and Remote Sensing. 39(5). 1013–1018. 141 indexed citations

18.

Kärkkäinen, K., Ari Sihvola, & K.I. Nikoskinen. (2000). Effective permittivity of mixtures: numerical validation by the FDTD method. IEEE Transactions on Geoscience and Remote Sensing. 38(3). 1303–1308. 273 indexed citations

19.

Kärkkäinen, K., et al.. (1998). Modelling of heterogeneous materials: numerical approaches for mixing rules. 1 indexed citations

20.

Kärkkäinen, K., et al.. (1997). Parameters and Definitions for Classifying the Behaviour of Composite Slabs. 752–765. 7 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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