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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.
UNCLASSIFIED/ fFOA OFFl&I.t..k YS& 8Ptk\f
2
} throat c
M wh =
G
= -(1. 35 X 1027 kg) J throat (9)
1 meter
= - (0.71MJ) ] throat
1 meter
where Mwh is the (equivalent) mass required to build the wormhole, A.t hroat is a suitable
measure of the linear dimension (width or diameter) of the throat, and M1 is the mass
of the planet Jupiter. One can also obtain the required energy, E..,1i, by multiplying both
sides of Equation (9) by c2 . Equation (9) shows that a mass of -0. 71 M1 will be required
to build a wormhole 1-m in size. As the wormhole size increases, the mass requirement
grows negative-large. Table 2 presents a tabulation of the required negative
( equivalent) mass as a function of sample wormhole throat sizes. After being alarmed
by the magnitude of the results, one should note that M wh is not the total mass of the
wormhole as seen by remote observers. The non-linearity of the general relativistic field
equation dictates that the total mass is zero (actually, the total net mass being positive,
negative or zero in the Newtonian approximation depending on the details of the
negative energy configuration constituting the wormhole system). Finally, Visser et al.
(Reference 59) demonstrated the existence of spacetime geometries containing
traversable wormholes that are supported by arbitrarily small quantities of negative
energy, and this was proved to be a general resu lt. The next section will expand on this
further.
Table 2. Negative Equivalent Mass Required for
Traversable Wormhole
A.throat (m} Mwh
1000 - 709.9 MJ
100 - 71 MJ
10 -7.1 MJ
1 - 0. 71 MJ
0.1 -22.6 M©
0.01 - 2.3 M©
M1 = 1.90 x 1027 kg, Mo= 5.98 x 1024 kg
B. PHYSICAL CONSTRAINTS ON NEGATIVE ENERGY
The Quantum Inequalities (QI) conjecture is an extension of the Heisenberg Uncertainty
Principle to curved spacetimes. Much research has been conducted around this one
topic alone. The literature is too numerous to cite here but the reader should consult
(Reference 10) and (Reference 46) for detailed information. The QI conjecture relates
(via model dependent time integrals of the energy density along geodesics) the energy
density of a free quantum field and the t ime during which this energy density is
observed. This conjecture was devised as an attempt to quantify the amount of
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