Superconducting Cosmic Strings
The content you've requested is available without charge only to active Sigma Xi members and American Scientist subscribers.
If you are an active member or an individual subscriber, please log in now in order to access this article.
If you are not a member or individual subscriber, you can:
In the eventful early moments of the Big Bang, the emerging universe expanded and cooled rapidly. Was this great phase transition perfectly smooth? There are indications that it cannot have been--that topological defects must have formed, just as ice on a freezing pond forms plates with zig-zag boundaries between them. The leading theory holds that these defects would have been cosmic strings, curiously microscopic and massive at the same time. The theory has the rare advantage that its processes can be simulated in the laboratory; also, as astronomical measurements are refined, its predictions can be tested by observation. Alejandro Gangui describes the huge hypothetical strings and recent work that indicates that they may conduct great amounts of electrical current.
Connect With Us:
An early peek at each new issue, with descriptions of feature articles, columns, and more. Every other issue contains links to everything in the latest issue's table of contents.News of book reviews published in American Scientist and around the web, as well as other noteworthy happenings in the world of science books.
To sign up for automatic emails of the American Scientist Update and Scientists' Nightstand issues, create an online profile, then sign up in the My AmSci area.
JSTOR, the online academic archive, contains complete back issues of American Scientist from 1913 (known then as the Sigma Xi Quarterly) through 2005.
The table of contents for each issue is freely available to all users; those with institutional access can read each complete issue.
View the full collection here.
Receive notification when new content is posted from the entire website, or choose from the customized feeds available.