Department of Physics![[photo of Dan, Michael, and Mark]](http://www.phy.duke.edu/%7Eqelectron/proj/infv/images/group-large.jpg) |
| (from left to right) Dan, Michael, and Mark doing slightly nonsensical things near the experiment |
This research is performed here at Duke University by Dan Gauthier and Michael Stenner in collaboration with Mark Neifeld from the University of Arizona.
We are generally interested in the velocity of information on optical pulses. The best-known question in this area is, of course, can information go faster than the speed of light in vacuum, c? We address this question and the more general question of how fast does information go? by creating pulses of light that travel very fast (much much faster than c) or very slow (much much slower than c) and measuring information encoded on them.
NEWS: The speed of information in a 'fast light' optical medium, Nature 425, 665 (2003) [PDF 284 kB]
Information Velocity Resources
![[Einstein's speed limit]](http://www.phy.duke.edu/%7Eqelectron/proj/infv/images/einstein-nb-large.jpg) |
- Introduction to the Information Velocity
- An introductory explanation of the information velocity and our research
- The fast-light debate
- The history and research into faster-than-c pulses
- Fast-light tutorial
- A brief tutorial on the physics and interpretation of fast light
- Making fast light
- A description of how we make fast-light pulses
- Measuring the information velocity
- How we measure the velocity of information
- FAQ
Frequently asked questions about fast light and the information velocity
- Publications
- Our fast-light publications and presentations
- News and Links
- News and Links to other resources on fast light and the information velocity
This material is based upon work supported by the National Science Foundation under Grant No. 0139991
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.