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//F8A 8FFI~Ie ■ 1!55 0111 Y manifold, but of the fibre bundle itself has an effect on T,.'.;i·. In addition to this, there are (compactified) extra-space dimensional quantum field (i.e., D-Brane or "brane world") analogs of the Casimir effect yet to be explored. But a detailed consideration of these for producing traversable wormholes is beyond the scope of this report and will be left for future investigation. As a final note, the methods used to obtain the electromagnetic 1;;;/· between parallel plane conductors can also be used when the conductors are not parallel but are joined together along a line of intersection. If the conductors have curved surfaces instead, then one obtains results that are similar to the case of intersecting conductors. These geometries have also been evaluated for the case of dielectric media. These particular cases will not be considered further since there are technical subtleties involved that complicate the calculations and application of the different approaches. This topic will also be left for future investigation. 5. Dynamical Casimir Effect: Moving Mirrors Negative energy can be created by a single moving reflecting (conducting) surface (a.k.a. a moving mirror). A mirror moving with increasing acceleration generates a flux of negative energy that emanates from its surface and flows out into the space ahead of the mirror (Reference 25, 56). This is essentially the simple case of an infinite plane conductor undergoing acceleration perpendicular to its surface. If the acceleration varies with time, the conductor will generally emit or absorb photons (i.e., exchange energy with the vacuum), even though it is neutral. This is an example of the well- known quantum phenomenon of parametric excitation. The parameters of the electromagnetic field oscillators (e.g., their frequency distribution function) change with time owing to the acceleration of the mirror (Reference 57). However, this effect is known to be exceedingly small, and it is not the most effective way to produce negative energy. This scheme will not be considered any further. 6. Casimir Effect: Negative Energy for Traversable Wormholes The electromagnetic Casimir effect can be used in principle to create a traversable wormhole. The energy density pcE = -(rr. 2Pic/720)Cl4 within a Casimir cavity is negative and manifests itself by producing a force of attraction between the cavity walls. But cavity dimensions must be made exceedingly small in order to generate a significant amount of negative energy. In order to use the Casimir effect to generate a spherically symmetric traversable wormhole throat of radius r,1i,·""'' there is need to design a cavity made of perfectly conducting spherically concentric thin plates with a plate separation d of (Reference 2): (ml To counteract the collapse of the cavity due to the Casimir Force acting between the plates, the plates will have equal electric charges placed upon them to establish 20 UNCLASSIFIED/ ,,raA 8FFifil1l1k 1181: 8HLY (8)
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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.