Signal velocity, causality, and quantum noise in superluminal light propagation

A. Kuzmich, A. Dogariu, L. J. Wang, P. Milonni, R. Y. Chiao

Research output: Contribution to conferencePaperpeer-review


Previous studies revealed that the "faster-than-c" propagation is perfectly in accord with special relativity. While this argument is correct, it is based on the classical wave theory. On the other hand, this phenomenon can be studied in situations when a pulse consists of only a few photons, or, when the number of photons is large, but the sensitivity of the light detection system is at or better than the shot photon noise level. In both cases, quantum mechanical treatment of both the light and the medium is necessary to provide a clear description of the system's dynamics.

Original languageEnglish (US)
Number of pages1
StatePublished - 2002
Externally publishedYes
EventQuantum Electronics and Laser Science (QELS) 2002 - Long Beach, CA, United States
Duration: May 19 2002May 24 2002


OtherQuantum Electronics and Laser Science (QELS) 2002
Country/TerritoryUnited States
CityLong Beach, CA

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


Dive into the research topics of 'Signal velocity, causality, and quantum noise in superluminal light propagation'. Together they form a unique fingerprint.

Cite this