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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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exploit quantum squeezing to extract energy from one place in the ordinary vacuum at
the expense of accumulating excess energy elsewhere (Reference 1).
The squeezed state of the electromagnetic field is a primary example of a quantum field
that has negative energy density and negative energy flux. Such a state became a
physical reality in the laboratory as a result of the nonlinear-optics technique of
"squeezing," i.e., of moving some of the quantum-fluctuations of laser light out of the
cos[co(t - z/c)] part of the beam and into the sin[co(t - z/c)] part (Reference 20, 40-
44). 7 The observable that gets squeezed will have its fluctuations reduced below the
vacuum ZPF. The act of squeezing transforms the phase space circular noise profile
characteristic of the vacuum into an ellipse, whose semimajor and sem iminor axes are
given by unequal quadrature uncertainties (of the quantized electromagnetic field
harmonic oscillator operators). This applies to coherent states in general, and the usual
vacuum is also a coherent state with eigenvalue zero. As this ellipse rotates about the
origin with angular frequency ro, these unequal quadrature uncertainties manifest
themselves in the electromagnetic field oscillator energy by periodic occurrences, which
are separated by one quarter cycle, of both smaller and larger fluctuations compared to
the unsqueezed vacuum.
Morris and Thorne (Reference 1) and Caves (Reference 45) point out that if one
squeezes the vacuum, i.e., if one puts vacuum rather than laser light into the input port
of a squeezing device, then one gets at the output an electromagnetic field with weaker
fluctuations and thus less energy density than the vacuum at locations where cos 2[co(t -
z/c)] =1 and sin 2[co(t - z/c)] sinh I; is met. It turns out that this is always true for every nonzero
value of I;, so pE-sqvac becomes negative at some point in the cycle for a general
squeezed vacuum state. On another note, when a quantum state is close to a squeezed
vacuum state, there will almost always be some negative energy densities present.
Negative energy can be generated by an array of ultrahigh-intensity lasers using an
ultra-fast rotating mirror system (Reference 47). In this scheme a laser beam is passed
7 w is the angular frequency of light, I is time, and z denotes the z-axis direction of beam propagation.
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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.