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This Defense Intelligence Reference Document from the Defense Intelligence Agency, dated 6 April 2010, is one in a series of FY 2009 advanced technology reports produced under the Advanced Aerospace Weapon System Applications (AAWSA) program. It reviews the physics of zero-point field energy in the quantum vacuum and proposed schemes for extracting it, including the Casimir effect, Forward's vacuum-fluctuation battery, and resonant dielectric spheres. It notes that no practicable extraction technique has been demonstrated in the laboratory.
UNCLASSIFIED/ ,'1"1!11'- l!ll"l"ll!lllit l!l!i! 811LI.I Unfortunately with regard to energy generation, though the Casimir forces involved can be of significance for MEMS applications (Reference 63), the associated Casimir energies involved are too small to be considered of significance for energy applications, so if the possibility for vacuum energy conversion exists, one must look elsewhere to other types of matter-vacuum interactions. TYPE I (TRANSIENT) AND TYPE II (CONTINUOUS) MACHINES A key feature of the Casimir process just described, regardless of viewpoint (plenum or matter-fields), is that it is a "one-shot," transient, energy-producing machine. That is, a~er delivering its energy, E, the matter that comprises the machine is in a "used" state (this used matter is commonly referred to as "ash") and cannot be restored to the original state without an input of energy that is greater than or equal to E. This "one- shot" feature can be generalized to define a category of machine called a Type I transient machine, with the Casimir machine constituting the prototypical representative. Should gravitation eventually be traced to a vacuum ZPF origin as proposed by Sakharov (Reference 64), then the fall of an object of mass m through a height h in a gravitational field (g = acceleration of gravity at Earth's surface), delivering its gravitational energy mgh upon impact with the ground, would constitute another example. In contrast, one can envision a Type II (continuous) machine in which vacuum ZPF energy is converted to a useful form on a recycling basis without net alteration to its own matter state. A hypothetical example is the tunable Casimir device that was reviewed in Section IV. The cycle of energy generation would consist of the collapse of conducting plates with delivery of energy, followed by separation of plates switched to insulating mode for which the attractive force is considerably weaker, only to be switched back to conducting mode for the next cycle, and so forth. Provided the input switching energy required per cycle is less than the output energy delivered per cycle, a continuous generation of energy without a net change in matter configuration would result. A second example would be a nonlinear oscillator that continuously, on a steady- state basis, down-shifted high-frequency components of the vacuum ZPF spectrum to lower frequencies for convenient collection and application, without a net change in its own operation. Clearly a Type II machine would be far more useful than a Type I machine for energy extraction. Type II machines would constitute a fuel-less energy source, with the ambient vacuum ZPF providing essentially unlimited energy. For this to be the case, however, another requirement needs to be satisfied, which the next section will address. DEGRADABILITY OF THE VACUUM The possibility of continuous conversion of vacuum ZPE to other forms (that is, by a Type II machine) requires that, in principle, vacuum energy must be degradable (that is, continuously consumable), not just that there be a surfeit of energy in place to harvest. This perspective leads to a remarkable question for deeper explorations of QED. It turns out that the mathematical structure of QED is based on a formalism in which the vacuum mode structure and vacuum fluctuation energy per mode are quantized in what could be called a "hard-wired" fashion; that is, they possess fixed immutable values. Therefore, at the end of a cycle of a hypothetical Type II machine, in 25 UNCLASSIFIED// I OK 01 I ICIAE 652 OHL I
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 57 pages are in the text index: search them above, or from the library's search.