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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.
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UNCLASSIFIED,' ;1F811. 8FFll!l*le lal!II!! 8111!¥ Contents I. Summary ............................................................................................................. v II. A Brief Review of Transversable Wormholes and the Stargate Solution ............ 1 A. Traversable Wormholes ................................................................................. 1 B. The "Stargate" Solution ................................................................................. 4 C. What a Wormhole Looks Like in the Real World ............................................. 7 III. The General Relativistic Definition of Exotic Matter and the Energy Conditions9 A. Examples of Exotic or "Negative" Energy Found in Nature ........................... 10 B. Generating Negative Energy in the Lab ........................................................ 11 1. Static Radial Electric & Magnetic Fields .................................................... 11 2. Squeezed Quantum Vacuum ..................................................................... 12 3. Gravitationally Squeezed Electromagnetic ZPF ......................................... 16 4. Vacuum Field Stress: Negative Energy from the Casimir Effect ................ 18 5. Dynamical Casimir Effect: Moving Mirrors ................................................ 20 6. Casimir Effect: Negative Energy for Traversable Wormholes .................... 20 IV. Constructing a Traversable Wormhole is not Easy .......................................... 21 A. Negative Energy Requirements and Energy Condition Violations ................. 21 B. Physical Constraints on Negative Energy ..................................................... 22 C. Observing Negative Energy in the Lab .......................................................... 25 v. Conclusion: The Way Forward .......................................................................... 26 VI. References ...................................................................................................... 29 Figures Figure 1. Intra-Universe Wormhole as a Hyperspace Shortcut Through Conventional Space .................................................................................vi Figure 2. Inter-Universe Wormhole (top) and Intra-Universe Wormhole (bottom).3 Figure 3. Diagram of a Simultaneous View of Two Remote Compact Regions, n1 and n2, of Minkowski Space Used to Create the Wormhole Throat on ...... 5 Figure 4. The Same Diagram as in Figure 3 Except as Viewed by an Observer Sitting in Region n1 Who Looks Through the Wormhole Throat and Sees Remote Region n2 on the Other Side ....................................................... 5 Figure 5. A Thin Shell of (Localized) Mass-Energy Possessing Two Principal Radii of Curvature, p1 and p2 ............................................................................ 6 iii UNCLASSIFIED/ ;CEiOA. OFFI&I.«11! 1!181!! 8HLY
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