Hmm... Man-made Gravitational Waves?

Aside from the gravitational wave connection, this doesn't really have much to do with astronomy, but it is something interesting to think about.  While I was reading up on gravitational waves for my last post, I came across a paper published in the journal Systemics, Cybernetics and Informatics titled, "The Utilization of High Frequency Gravitational Waves for Global Communication."  According to this article, and references therein, high-frequency means anything greater than 100 kHz.  As the title says, the authors claim that it is possible to generate and detect high-frequency gravitational waves for communication.  If you read my previous post, then you know that gravitational waves that have any potential to be detected require massive compact objects, such as neutron star or black hole binaries orbiting each other, and even then they are weak and our most advanced interferometers have not yet detected them.  So how can it be possible for us humans to generate gravitational waves that we can detect?  Interestingly, the authors, Robert and Bonnie Baker, claim to demonstrate theoretically that high-frequency gravitational waves can be generated using superradiance, which uses micro electromechanical systems (MEMS) technology.  According to the authors, some detectors (receivers of the GWs) have already been built, but they do not yet have the required sensitivity.  The authors conclude that, "the utilization of modern MEMS technology and a doublehelix array of them would allow for the construction of a HFGW generator or transmitter involving superradiance that exhibits sufficient strength to transmit HFGW signals globally.  This is possible even though the conversion rate of EM power to GW power is exceedingly small and, like EM radiation, the GW signal power falls off as the inverse square of the distance."  I know nothing about this technology, and I did not understand a lot of the details, but they seem to have some compelling arguments.  However, I still find myself wondering if this is really possible.  Assuming that what the authors propose in theory can be built and works in reality, what about the cost?  Will this ever be practical?  Something to think about.

Source:

Baker, R., Baker, B., Systemics, Cybernetics and Informatics, Utilization of High Frequency Gravitational Waves for Global Communication, Cybernetics and Informatics, 2012 Vol. 10 - number 5