TITLE

Superluminal time advance of a complex audio signal

AUTHOR(S)
Munday, J.N.; Henderson, R.H.
PUB. DATE
July 2004
SOURCE
Applied Physics Letters;7/19/2004, Vol. 85 Issue 3, p503
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
There has been much recent interest in the study of superluminal pulse propagation; however, all previous findings have been extremely limited, only observing superluminal group velocities for simple Gaussian-like pulses. We now report the observation of a superluminal time advance for a complex, broadband signal. Such an advance causes all frequency components and envelopes to appear to exit a circuit 0.078±0.004 ms before entering it. Although this may seem counterintuitive, the results are not in conflict with relativistic causality and could lead to many useful devices.
ACCESSION #
13791174

 

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