Re: FTL signals; was What is SETI?
Subject: Re: FTL signals; was What is SETI?
From: red
Date: 09/05/2004, 22:47
To: stephen voss <voss749@bellsouth.net>
Newsgroups: sci.astro.seti,alt.sci.seti,sci.space.policy

Stephen,
	Update on "our current technology" - when it comes to communication faster
than the speed of light, how does 4.7 times c (the speed of light) sound to
you?  :-)
from:
http://phoenix.akasha.de/~aton/SuperPHI.html

     "Other experiments confirming the superluminality of tunnelling have
been performed in
     Cologne, Florence, and Vienna [14, 15, 16]. The Cologne and Florence
groups performed
     microwave experiments, and the Vienna group performed a femtosecond
laser experiment. All
     these groups have confirmed the Hartman effect. One of these groups
[17] has claimed to
     have sent Mozart's 40th symphony at a speed of 4:7c through a
microwave tunnel barrier 114
     mm long consisting of a periodic dielectric structure similar to our
dielectric mirror."

     --Quantum Nonlocality in Two-Photon Raymond Y. Chiao , Paul G. Kwiat z
and Aephraim M.
     Steinberg. Department of Physics, University of California, Berkeley,
CA 94720-7300, December 21,
     1994). Pp 10.

          [14] A. Enders and G. Nimtz, J. Phys. I France 3 (1993) 1089.

          [15] A. Ranfagni, P. Fabeni, G.P. Pazzi and D. Mugnai, Phys. Rev.
E 48(1993)

          1453.

          [16] Ch. Spielmann, R. Szip· ocs, A. Stingl and F. Krausz, Phys.
Rev. Lett.

          73(1994) 2308.

          [17] W. Heitmann and G. Nimtz, Phys. Lett. A 196(1994) 154.

-- 
Cheers,
Red
--
*************************
Replies will bounce, unless you remove 
the letter A from my email address.

stephen voss wrote:

David Woolley wrote:

In article <y0snc.91055$7a5.48783@bignews6.bellsouth.net>,
stephen voss <voss749@bellsouth.net> wrote:


1) If youre going to realistically maintain long term interstellar
communication youre going to have to develop reliable FTL
communication...which we cannot currently detect.


The current belief is that FTL *communication* is physically impossible.


Matter moving FTL is impossible under current belief...energy moving
faster than light is not impossible, just unproven and undetectable by
our current technology.