SRX Physics

SRX Physics / 2010 / Article

Research Article | Open Access

Volume 2010 |Article ID 592051 |

H. W. L. Naus, "Ion Plasma Responses to External Electromagnetic Fields", SRX Physics, vol. 2010, Article ID 592051, 17 pages, 2010.

Ion Plasma Responses to External Electromagnetic Fields

Received20 Aug 2009
Accepted30 Sep 2009
Published13 Jan 2010


The response of ion plasmas to external radiation fields is investigated in a quantum mechanical formalism. We focus on the total electric field within the plasma. For general bandpass signals three frequency regions can be distinguished in terms of the plasma frequency. For low frequencies, the external field is shielded. For high frequencies, the field is not modified. Resonant behavior of the plasma appears for frequencies near the plasma frequency: large internal electric fields and induced currents are present. These effects may be relevant for biological systems. The model is therefore extended to a two-species plasma and additional interactions are studied. The response is not essentially altered. To make the models more realistic, a so-called bath is included. In the weak coupling approximation the resonance frequency is shifted and some damping occurs. Finite temperature effects on the electric field are absent. The energy of the system, however, depends on temperature.


  1. F. Lenz, H. W. L. Naus, K. Ohta, and M. Thies, “Zero modes and displacement symmetry in electrodynamics,” Annals of Physics, vol. 233, no. 1, pp. 51–81, 1994. View at: Publisher Site | Google Scholar | MathSciNet
  2. H. Fröhlich, “The biological effects of microwaves and related questions,” Advances in Electronics and Electron Physics, vol. 53, pp. 85–152, 1980. View at: Google Scholar
  3. F. Apollonio, M. Liberti, G. d'Lnzeo, and L. Tarricone, “Integrated models for the analysis of biological effects of EM fields used for mobile communications,” IEEE Transactions on Microwave Theory and Techniques, vol. 48, no. 11, pp. 2082–2093, 2000. View at: Google Scholar
  4. K. R. Foster and M. H. Repacholi, “Biological effects of radiofrequency fields: the electroencephalogram during a visual working memory task,” Rad Research, vol. 162, p. 219, 2004. View at: Google Scholar
  5. A. C. Green, I. R. Scott, R. J. Gwyther et al., “An investigation of the effects of TETRA RF fields on intracellular calcium in neurones and cardiac myocytes,” International Journal of Radiation Biology, vol. 81, no. 12, pp. 869–885, 2005. View at: Publisher Site | Google Scholar
  6. L. J. Challis, “Mechanisms for interaction between RF fields and biological tissue,” Bioelectromagnetics, vol. 26, pp. S98–S106, 2005. View at: Google Scholar
  7. M. Simeonova and J. Gimsa, “The influence of the molecular structure of lipid membranes,” Bioelectromagnetics, vol. 27, no. 8, pp. 652–666, 2006. View at: Google Scholar
  8. J. R. Jauchem, “Effects of low-level radio-frequency energy on human cardiovascular,” International Journal of Hygiene and Environmental Health, vol. 211, pp. 1–29, 2008. View at: Google Scholar
  9. N. W. Ashcroft and N. D. Mermin, Solid State Physics, Thomson Learning, Boston, Mass, USA, 1976.
  10. G. B. Arfken and H. J. Weber, Mathematical Methods for Physicists, Academic Press, San Diego, Calif, USA, 4th edition, 1995.
  11. N. G. van Kampen, Stochastic Processes in Physics and Chemistry, Elsevier, Amsterdam, The Netherlands, 3rd edition, 1997.

Copyright © 2010 H. W. L. Naus. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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