Documents / Report
This Defense Intelligence Reference Document (DIA-08-1004-004), dated 6 April 2010, was produced by the Defense Intelligence Agency under its Advanced Aerospace Weapon System Applications (AAWSA) Program. It is one of a series of advanced technology reports from FY 2009. It reviews the general relativity physics of traversable wormholes and flat-faced "stargate" solutions for faster-than-light travel. It also covers the exotic negative energy these would need, proposed lab methods for generating it such as the Casimir effect and squeezed vacuum, and the constraints involved.
“The Times”24 pages
UNCLASSIFIED/ }FQA: QFFICICP 1!55 0111 Y results that are similar to the static case.) This relation will help to decide if a traversable wormhole having one throat, or two or more throats should be built and at what energy cost this will incur. The following is the result of our analysis for traversable wormholes having: • 1-handle/throat (i.e., flat torus or spherical wormhole topology) giving g = 1, thus Xe = 0, and so U-::;; 0 • 2-handles/throats giving g = 2, thus xe = -2, and so U:;; -1/2 • 3-handles/throats giving g = 3, thus xe = -4, and so U:;; -1; and so on. It is clear from this that as the number of wormhole handles/throats increases the amount of negative energy required to create the wormhole will grow larger in magnitude. This is an undesirable demand on any putative negative energy generator. It is clear then that item (a) defines the most desirable engineering solution one can hope for: a 1-handle/throat traversable wormhole that will require zero or (arbitrarily) little negative energy to create. The magnitude of energy condition violations and the amount of negative energy required to build a traversable wormhole will be addressed. B. THE "STARGATE" SOLUTION It is a straightforward exercise to design a real "stargate" from wormhole physics. A stargate is essentially a traversable wormhole with a flat-face shape for the throat as opposed to the spherical-shaped throat of the Morris and Thorne wormhole as discussed in the previous section. A traveler going through a stargate will simply be shunted into another remote spacetime region within our universe or into another universe. The flat-face traversable wormhole solution is derived from the thin shell (a.k.a. junction condition or surface layer) formalism of the Einstein field equation (Reference 6, 7). The procedure is to take two copies of flat Minkowski space and remove from each identical regions of the form n x ~H, where n is a three-dimensional compact spacelike hypersurface and ~l\ is a timelike line (time axis). Then identify these two incomplete spacetimes along the timelike boundaries CQ x ~n. The resulting spacetime is geodesically complete and possesses two asymptotically flat regions connected by a traversable wormhole. The throat of the wormhole is just the junction on, which is a two-dimensional space-like hypersurface, at which the two original Minkowski spaces are identified (see Figures 3 and 4). 4 UNCLASSIFIED/ /FQA QFFiiii9:k Wliili 8111!¥
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 42 pages are in the text index: search them above, or from the library's search.