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Defense Intelligence Reference Document High-Frequency Gravitational Wave Communications

Defense Intelligence Agency · 57 pages · text from the file's own layer

This Defense Intelligence Reference Document was prepared by the Defense Intelligence Agency under its Advanced Aerospace Weapon System Applications (AAWSA) program, is dated 6 April 2010 and is part of a series of advanced technology reports produced in FY 2009. It reviews proposed laboratory generators and detectors of high-frequency gravitational waves for communications. It favors an infrared-excited molecules transmitter and the Li-Baker detector, estimating about 1.9 million bits per second over 7,000 km through the Earth. It also discusses timing standards and interplanetary navigation uses.

  • p. 2 …a series of advanced technolo re orts roduced in FY 2009 under the Defense Intelligence Agency…
  • p. 30 …The bandwidth, B, here is arbitrarily taken to be 100 kHz for a future advanced system…
  • p. 38 …It is difficult to predict even ten years in advance to the time when we expect…
  • p. 41 …The most stunning advances in HFGW applications will probably not be in communications, but in the…
  • p. 42 …its wavelength changes based on gravitational red shift and the gravitational wave backscatters off the curvature…
  • p. 44 …M. (2008), "Very High Frequency Gravitational Waves," Gravitational Wave Advanced Detector Workshop (GWADW), Elba Conference, 17…
  • p. 46 …Magnetic Field," in the proceedings of the HFGW2 Workshop, Institute of Advanced Studies at Austin (IASA…
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refraction or bending of gravitational rays), backscatter, and/or other characteristics
can be modified by a material object's texture and internal structure. For example, the
change in polarization of a GW passing through a material object is discussed in Misner,
Thorne, and Wheeler (1973): "In the real universe there are spacetime curvatures due
not only to the energy of gravitational waves, but also more importantly to the material
[objects and structures] content of the universe ... its wavelength changes [based on
gravitational red shift] and [the gravitational wave] backscatters off the curvature to
some extent. If the wave is a pulse, then the backscatter will cause its shape and
polarization .... " It is difficult to theoretically establish the actual magnitude of the
changes, especially at very high frequencies (10 14 Hz and higher) and to quantify them
prior to HFGW generation/detection laboratory experiments.
4.5 2050 AND BEYOND
The phases of human space exploration may be divided into the following phases:
• Epoch 1 - Interplanetary Exploration
• Epoch 2 - Interstellar Exploration
• Epoch 3 - Intergalactic Exploration
• Epoch 4 - Universal Exploration
Each phase will have its own challenges and opportunities, but one can certainly
speculate that the human need for connectedness and communication knows no
bounds. So any scope of expansion beyond Epoch 1 will have enormous challenges in
the area of communication. The vast distances involved will require some form of
communication that entails faster-than-light (FTL) propagation. While this is a highly
speculative area, such schemes have been proposed for FTL HFGW. Both Fontana and
Mehalic (unpublished reports) have proposed models of the universe, such as the
trispace model, in which subluminal or luminal gravitational waves may couple into a
super-luminal "parallel universe" inside which FTL speeds are possible. Such as scheme
would be required to communicate between star systems and galaxies if humankind is
to maintain any type of cohesive civilization. Without communications we have a history
of fractured civilization, and we slip into becoming our own worst enemy. Universal
communication holds the lofty promise of universal peace.
5.0 Acknowledgements
The research published in technical papers authored by Gary Stephenson, chief
investigator for Seculine Consulting, (Stephenson, 2009a, Harper Stephenson (2007)
and Stephenson (2009b)) were crucial in the preparation of this study and is gratefully
acknowledged.
6.0 References
Baker, R. ML, Jr. (1967), ASTROOYNAMICS: Applications and Advanced Topics,
Academic Press, New York and London
Baker, R. ML, Jr. (2000), Chinese Patent Number 0510055882.2
37
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 57 pages are in the text index: search them above, or from the library's search.