Discover
/
Article

Much ado about nothing

MAR 01, 1954
A nontechnical but physical approach to the question of vacuum polarization and allied problems in quantum electrodynamics.
H. C. Corben

Nature abhors a vacuum, the ancient physicists told us. And judging from the modern quantum theory of the vacuum it is not very surprising. Indeed, since Dirac propounded his theory of the electron, there have appeared many papers in which the properties of the vacuum have been discussed in terms of very complicated (and sometimes divergent) integrals. Instead of being the simplest problem in the world, the motion of a free electron in a vacuum appears to be an extremely complicated phenomenon. Instead of being an elementary nothingness, like the antithesis of Hegel’s “Being” or that which Torricelli would have produced with a perfect pump, the vacuum of quantum electrodynamics can “fluctuate”, can be “polarized”, and can contain “negative energy electrons”. What is worse, its fluctuations and polarization are infinite and the number of negative energy electrons is infinite also.

This article is only available in PDF format

More about the Authors

H. C. Corben. Carnegie Institute of Technology.

Related content
/
Article
Figuring out how to communicate with the public can be overwhelming. Here’s some advice for getting started.
/
Article
Amid growing investment in planetary-scale climate intervention strategies that alter sunlight reflection, global communities deserve inclusive and accountable oversight of research.
/
Article
Although motivated by the fundamental exploration of the weirdness of the quantum world, the prizewinning experiments have led to a promising branch of quantum computing technology.
/
Article
As conventional lithium-ion battery technology approaches its theoretical limits, researchers are studying alternative architectures with solid electrolytes.
This Content Appeared In
pt-cover_1954_03.jpeg

Volume 7, Number 3

Get PT in your inbox

pt_newsletter_card_blue.png
PT The Week in Physics

A collection of PT's content from the previous week delivered every Monday.

pt_newsletter_card_darkblue.png
PT New Issue Alert

Be notified about the new issue with links to highlights and the full TOC.

pt_newsletter_card_pink.png
PT Webinars & White Papers

The latest webinars, white papers and other informational resources.

By signing up you agree to allow AIP to send you email newsletters. You further agree to our privacy policy and terms of service.