[ExI] Nimtz >lux redux?

[scerir]

The paper should be this one
http://www.arxiv.org/abs/0708.0681
They write: "The 'evanescent modes' and 'tunneling'
violate the theory of special relativity, obviously,
they represent the exception which proves the special
theory of relativity."

Papers below seem to be more interesting
about 'signal' vs 'group' superluminal
velocities. Especially the experiment
performed by R. Chiao.

s.

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Tunneling Times and Superluminality: a Tutorial
http://www.arxiv.org/abs/quant-ph/9811019
-Raymond Y. Chiao
Abstract.
Experiments have shown that individual photons
penetrate an optical tunnel barrier with an effective
group velocity considerably greater than the vacuum
speed of light. The experiments were conducted with
a two-photon parametric down-conversion light source,
which produced correlated, but random, emissions of
photon pairs. The two photons of a given pair were
emitted in slightly different directions so that one
photon passed through the tunnel barrier, while the
other photon passed through the vacuum. The time
delay for the tunneling photon relative to its
twin was measured by adjusting the path length
difference between the two photons in a Hong-Ou-Mandel
interferometer, in order to achieve coincidence detection.
We found that the photon transit time through the barrier
was smaller than the twin photon's transit time through
an equal distance in vacuum, indicating that the process
of tunneling in quantum mechanics is superluminal.
Various conflicting theories of tunneling times are
compared with experiment.

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Superluminal Tunneling Devices
http://www.arxiv.org/abs/physics/0204043
-Günter Nimtz
Abstract.
Photonic tunneling permits superluminal signal
transmission. The principle of causality is not
violated but the time duration between cause
and effect can be shortened compared with an
interaction exchange with velocity of light.
This outstanding property can be applied to
speed-up photonic signal modulation and transmission
as well as to improve micro-electronic devices.
Superluminal photonic signal transmission have
been presented at microwave and infrared frequencies
already. Presumably superluminal photonic and electronic
devices can become reality having in mind the
experimental evidence of the universal tunneling
time of photons and of electrons.

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Basics of Superluminal Signals
http://www.arxiv.org/abs/physics/0104063
G. Nimtz, A. Haibel
Abstract.
The paper elucidates the physical basis of
experimental results on superluminal signal velocity.
It will be made plausible that superluminal signals
do not violate the principle of causality but they
can shorten the luminal vacuum time span between cause
and effect. This amazing behaviour is based on
the property that any physical signal has a finite
duration.