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

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

doi:10.1103/PhysRevLett.86.3925

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

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

Research output: Contribution to journal › Article › peer-review

201 Scopus citations

Abstract

A realistic definition of the velocity of the signal carried by a light pulse is presented. This velocity is analyzed for the recently demonstrated superluminal light impulse propagation. It is shown that while the pulse and the effective signal are both advanced via propagation at a group velocity higher than c, or even negative, the signal velocity is still bounded by c.

Original language	English (US)
Pages (from-to)	3925-3929
Number of pages	5
Journal	Physical review letters
Volume	86
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.86.3925
State	Published - Apr 30 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.86.3925

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abstract = "A realistic definition of the velocity of the signal carried by a light pulse is presented. This velocity is analyzed for the recently demonstrated superluminal light impulse propagation. It is shown that while the pulse and the effective signal are both advanced via propagation at a group velocity higher than c, or even negative, the signal velocity is still bounded by c.",

author = "A. Kuzmich and A. Dogariu and Wang, {L. J.} and Milonni, {P. W.} and Chiao, {R. Y.}",

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AU - Dogariu, A.

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AU - Milonni, P. W.

AU - Chiao, R. Y.

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AB - A realistic definition of the velocity of the signal carried by a light pulse is presented. This velocity is analyzed for the recently demonstrated superluminal light impulse propagation. It is shown that while the pulse and the effective signal are both advanced via propagation at a group velocity higher than c, or even negative, the signal velocity is still bounded by c.

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

Abstract

All Science Journal Classification (ASJC) codes

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