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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.
“Lockheed”2 pages
UNCLASSIFIED//FIHl 8FFHil.t.k Wfili IH.k\f interchangeability of source-field effects and vacuum-fluctuation effects ... shows that source-field effects are the same as if vacuum fluctuations were present." Applied to the case of a radiating atom, Jaynes provides a specific example of his conclusion with the statement "The radiating atom is indeed interacting with an electromagnetic field of the intensity predicted by the zero-point energy, but this is just the atom's own radiation reaction field (Reference 67)." As a result, with the axiomatic second- quantized field formalism set aside, in the neoclassical approach any consideration of the conversion of vacuum ZPE for use must be displaced to consideration of the conversion and degradability of source or matter-fields fluctuation energy for use, issues yet to be addressed in the literature. SED Model Revisited SED is a classical (that is, non-quantized) theory of particle-field interactions that assumes the existence of classical particles and a classical random background electromagnetic field distribution whose Lorentz-invariant spectral energy density is chosen to match that originally appearing in second-quantized QED. Given SED's heuristic value of classical-like modeling and ease of calculation and its seeming ability to address many quantum mechanical problems with success (as outlined in Section III), the SED approach has been employed in the literature to explore vacuum energy conversion. In the absence of a formalism for vacuum field quantization, there are no fundamental immutability constraints that would mitigate against vacuum energy degradability, so that issue is not testable under this formalism. Investigations to date have included the use of cavity-QED techniques to suppress atomic or molecular ground states (Reference 28), and evaluation of the use of a nonlinear oscillator to continuously downshift high-frequency components of the vacuum fluctuation spectrum to lower frequencies for convenient collection and use. With regard to the latter, the result of a nonrelativistic SED analysis is that the downshifting process acts to convert an initial hypothetical cubic-frequency vacuum fluctuation spectrum towards a Rayleigh-Jeans rather than a Planck heat spectrum (the former being a low energy approximation of the latter) (Reference 68, 69). Extension of the analysis to the relativistic regime does not alter this conclusion (Reference 70, 71). Though further work remains, these considerations lead one to conclude that SED in its present form is incomplete, and may not be useful for the assessment of the potential conversion of vacuum energy to other forms; its predictions concerning such must be treated with caution. Additional shortcomings of the SED model include convoluted attempts to derive interference effects or Schrbdinger's equation, and the difficulty in explaining sharply- defined stationary states (that is, sharp atomic spectra), though there have been many attempts (Reference 17). QED and SED do not in general yield the same results for nonlinear systems, although they are in agreement for the range of linear systems examined. The apparent disagreements between SED and QED are quite serious, and occur in areas in which QED is highly successful. Perhaps the source of these difficulties lies in accurately dealing with the nonlinear stochastic differential equations in SED for these problems. Even still, it is likely that differences will remain, which should clearly be testable by experimental means (Reference 72). For a very thorough, detailed and scholarly review of SED, see (Reference 17) and the corresponding review by Cole and Rueda (Reference 73). 27 UNCLASSIFIED//EiOAt OEiEil&l11J.k WliEii IU.blf
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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.