"A new form of matter at the coldest temperatures in the universe." Simplified, surprisingly clear explanation. Includes cartoon illustrations.
An answer from the Lansing State Journal in Michigan, January 29, 1992.
Using lasers to trap and cool molecules for study. Nobel Prize for Chu, Phillips, and Cohen-Tannoudji.
This department of the National Institute of Standards and Technology studies the physics of laser cooling, electromagnetic trapping, and other radiative manipulation of neutral atoms and dielectric particles. Home of 1997 Nobel Prize winner William D. Phillips, whose team has cooled atoms to less than a millionth of a degree above absolute zero.
A summary of the NIST project.
Download page for free copies of several "Cool Simulations."
A detailed links list of about 50 research groups around the world, with an immense list of subject links, as well. From the Laser Physics Group at Umeå University, Sweden.
Press releases from the National Institute of Standards and Technology and explanations of the work on Bose-Einstein condensates which won the Nobel Prize.
Can you really make a system which has a temperature below absolute zero? From the Usenet Physics FAQ.
Click on: "Experiment X: Ideal Gas Law and the Absolute Zero of Temperature." Requires Adobe Acrobat Reader. The experiment uses liquid nitrogen.