Documents / Report
This Defense Intelligence Reference Document from the Defense Intelligence Agency is dated 2 April 2010 and was produced under the Advanced Aerospace Weapon System Applications (AAWSA) Program. It is one of a series of advanced technology reports from FY 2009. It reviews general relativistic warp drives, the cosmological constant, Casimir energy and extra space dimensions. It proposes that dark energy may come from higher dimensions and that controlling those dimensions could one day make a warp drive possible.
UNCLASSIFIED/ ,'F8R 8FFl01fok 1,16& 8Plk¥ are kept constant, then!'..= 3.37 x 10 24 m (or 3.57 x 108 light-years) in order for vwarp :a,; 1, which is an unrealistic requirement on the warp bubble design. Because this energy requirement is so phenomenally high one finds it of paramount importance to explore new ideas in the field of warp drive technology. What now follows is a pedagogically rich review of the novel warp drive concept that we have been developing since 2005. 3. The Cosmological Constant Einstein is famous for a multitude of achievements in the field of physics. Arguably his most notable contribution is the General Theory of Relativity, a geometric description of gravitation whose fundamental idea relates the matter and the energy content of the universe to the geometry of spacetime. Simply put, the presence of matter and energy causes spacetime to curve, and this curvature controls how matter and energy move through spacetime. General relativity has been the prevailing theory of gravitation since 1915 and thus far has unambiguously passed observational and experimental tests. It remains an active area of research and technology is still being developed to test certain features of the theory. Gravitational waves, for example, are one prediction from GR; however, technology is only now reaching the stage of maturity to allow for the detection of these waves. 3.1 EINSTEIN'S EQUATION AND THE INTRODUCTION OF/\ Upon completion of GR, Einstein applied his theory to the entire universe. He firmly believed in Mach's principle, and the only way to satisfy this was to assume that space is globally closed and that the metric tensor should be determined uniquely from the energy-momentum tensor (Reference 13). He also assumed that the universe was static, which was a reasonable assumption at the time because observational astronomy had not advanced to a level that contradicted this paradigm. In 1917, when a static solution to his equations could not be found, he introduced the cosmological constant A (Reference 14): 3 ( 3.1) In this equation R_,,.. is the Ricci curvature tensor, R is the Ricci curvature scalar, Tw is the stress-energy-momentum tensor, 4 and g1"- is the spacetime metric. The left-hand side of Equation (3.1) encodes the curvature in the geometry of spacetime, and the right-hand side encodes the source of matter-energy that curves spacetime. The addition of A can be understood as a term in the equation which allows one to adjust theory to match observation. In Einstein's case, he chose to add A to ensure that the universe was static and unchanging. In later years, he often referred to this amendment to his equations as his "biggest blunder." Several years after GR had been formulated, the astronomer Edwin Hubble discovered the phenomenon of galactic redshifting, which strongly indicated that the universe was indeed expanding. This 3 Pronounced "lambda." 1 T,,. encodes the density and flux of a matter source's energy and momentum. 4 UNCLASSIFIED/ /I OR 01 r1e1111t ~91! 8FtLV
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 33 pages are in the text index: search them above, or from the library's search.