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This Defense Intelligence Reference Document, DIA-08-1004-004, is dated 6 April 2010. The Acquisition Support Division of the Defense Intelligence Agency's Defense Warning Office prepared it as one in a series of advanced technology reports from FY 2009 under the Advanced Aerospace Weapon System Applications Program. It reviews the physics of traversable wormholes and flat-faced "stargate" solutions, and it covers how negative energy might be generated in the laboratory. It concludes that the key technical challenge is identifying and producing exotic matter.
From the source: Release of 2026-09-18 Incident: 4/6/10, Las Vegas, Nevada. Released with redactions. This document is a Defense Intelligence Reference Document (DIRD), a technical reference format used by the Defense Intelligence Agency (DIA) to capture baseline knowledge on a specific topic for later analytic use. DIRDs are best understood as reference and synthesis products rather than as original research. It is one of 38 DIRDs produced under the Advanced Aerospace Weapon System Applications Program (AAWSAP) between 2009 and 2011. Because AAWSAP’s scope permitted a broad range of supporting topics, not every DIRD in the series directly concerns aerospace systems or future threat assessment. The following summary reflects the DIRD’s scope and framing at the time of writing and should not be read as implying current validation of the concepts discussed. This DIRD examines traversable wormholes and “stargates” as hypothetical spacetime structures within general relativity that theoretically offer a means of faster-than-light travel or communication. The report focuses extensively on the requirement for exotic, negative-energy matter to stabilize and keep such geometries open for the passage of macro-scale objects. It reviews standard wormhole models, describes a flat-throated “stargate” variant, and argues that violations of general relativity's standard energy conditions do not physically rule such structures out, citing microscopic, transient negative-energy effects observed in Casimir-type laboratory phenomena. However, the document acknowledges that the transition from microscopic quantum fluctuations to macroscopic engineering is an unresolved barrier. While small-scale negative-energy effects are observable, there is no known mechanism to generate, concentrate, or stabilize the amounts of exotic matter proposed to be required to sustain a traversable macroscopic wormhole. Ultimately, while the paper frames wormhole concepts within accepted relativistic physics, it confirms that the gap between theoretical models and any realizable technology remains enormous.
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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 s 0
• 2-handles/throats giving g = 2, thus xe = -2, and so U s -1/2
• 3-handles/throats giving g = 3, thus xe = -4, and so U s -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 1.R, where n is a three-dimensional compact
spacelike hypersurface and 9, is a timelike line (time axis). Then identify these two
incomplete spacetimes along the timelike boundaries an x ~H. 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 an, which is a
two-d imensional space-l ike hypersurface, at which the two original Minkowski spaces
are identified (see Figures 3 and 4) .
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 42 pages are in the text index: search them above, or from the library's search.