Jg. Learned et al., TIMING DATA COMMUNICATION WITH NEUTRINOS - A NEW APPROACH TO SETI, Quarterly Journal of the Royal Astronomical Society, 35(3), 1994, pp. 321-329
We examine the limitations imposed by physical principles upon the tra
nsmission of timing data over interstellar distances. We also identify
a unique pair of fundamental processes that can be used for the trans
mission of timing marker pulses as narrow as 10(-21) sec over Galactic
scale distances, using neutrinos. Assuming a requirement for clock sy
nchronization at remote points in space, it is shown that the presence
of chaos in the motion of astronomical bodies implies a requirement f
or timing synchronization pulses, no matter what future advancements i
n time keeping may occur. We then argue that an advanced civilization
in the Galaxy may already be using this technology and, further, that
the next generation of neutrino telescopes being built may have the ca
pability of detecting these neutrino signals.