Next Article in Journal
Changing Trends and Abrupt Features of Extreme Temperature in Mainland China from 1960 to 2010
Next Article in Special Issue
Correction: Cooray et al. The Deep Physics Hidden within the Field Expressions of the Radiation Fields of Lightning Return Strokes. Atmosphere, 2016, 7, 21.
Previous Article in Journal
ENSO-Related Precipitation and Its Statistical Relationship with the Walker Circulation Trend in CMIP5 AMIP Models
Article Menu

Export Article

Correction published on 10 March 2016, see Atmosphere 2016, 7(3), 41.

Open AccessArticle
Atmosphere 2016, 7(2), 21; doi:10.3390/atmos7020021

The Deep Physics Hidden within the Field Expressions of the Radiation Fields of Lightning Return Strokes

1
Department of Engineering Sciences, Uppsala University, 751 21 Uppsala, Sweden
2
Department of Clinical Neuroscience, Karolinska University Hospital, 171 76 Stockholm, Sweden
*
Author to whom correspondence should be addressed.
Academic Editor: Farhad Rachidi
Received: 1 January 2016 / Revised: 22 January 2016 / Accepted: 25 January 2016 / Published: 30 January 2016
View Full-Text   |   Download PDF [5108 KB, uploaded 30 January 2016]   |  

Abstract

Based on the electromagnetic fields generated by a current pulse propagating from one point in space to another, a scenario that is frequently used to simulate return strokes in lightning flashes, it is shown that there is a deep physical connection between the electromagnetic energy dissipated by the system, the time over which this energy is dissipated and the charge associated with the current. For a given current pulse, the product of the energy dissipated and the time over which this energy is dissipated, defined as action in this paper, depends on the length of the channel, or the path, through which the current pulse is propagating. As the length of the channel varies, the action plotted against the length of the channel exhibits a maximum value. The location of the maximum value depends on the ratio of the length of the channel to the characteristic length of the current pulse. The latter is defined as the product of the duration of the current pulse and the speed of propagation of the current pulse. The magnitude of this maximum depends on the charge associated with the current pulse. The results show that when the charge associated with the current pulse approaches the electronic charge, the value of this maximum reaches a value close to h/8π where h is the Plank constant. From this result, one can deduce that the time-energy uncertainty principle is the reason for the fact that the smallest charge that can be detected from the electromagnetic radiation is equal to the electronic charge. Since any system that generates electromagnetic radiation can be represented by a current pulse propagating from one point in space to another, the result is deemed valid for electromagnetic radiation fields in general. View Full-Text
Keywords: lightning; electromagnetic fields; accelerating charges; return stroke models; time-energy uncertainty principle lightning; electromagnetic fields; accelerating charges; return stroke models; time-energy uncertainty principle
Figures

Figure 1

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. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Cooray, V.; Cooray, G. The Deep Physics Hidden within the Field Expressions of the Radiation Fields of Lightning Return Strokes. Atmosphere 2016, 7, 21.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Atmosphere EISSN 2073-4433 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top