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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.
“The Advance”4 pages
UNCLASSIFIED/ ,'1"1!11'- l!ll"l"!!!llit tl!II!! l!IHLY which both matter and vacuum mode structure have been returned to their original states, the vacuum modes must of necessity contain at a minimum the same, "hard- wired," energetic content as before the cycle. Therefore, assuming local detailed- balance energy conservation, continuous conversion of vacuum ZPE to other forms via a Type II machine is, from the QED viewpoint, forbidden in principle since the vacuum as described by the QED formalism is non-degradable. (Globally, vacuum energy is not conserved during cosmological expansion, with work being done by the negative vacuum pressure to maintain positive constant vacuum energy density and therefore increasing the vacuum energy (Reference 65) This outcome of second-quantized QED theory permits of but two interpretations with regard to continuous vacuum energy conversion: 1) QED theory, despite criticisms that can be leveled against it, is correct in its description of vacuum fluctuation dynamics, and even though vacuum ZPE exists, it cannot be continuously converted to other forms, or 2) the axiomatic inconvertibility is an artifact of an over-idealized mathematical structure, and therefore the possibility of conversion remains an open question. 11 What is not in question, however, is that QED, as an axiomatic, quantum formalism based on the concept of an immutable, non- degradable vacuum, does not support the concept of continuous vacuum energy conversion. ALTERNATIVES TO QED As noted in Section V, despite its successes the second-quantized QED formalism with its infinite vacuum degrees of freedom and associated infinite energy density has been the subject of criticism and, as a result, alternatives have been proposed and investigated in the literature. The alternatives run the gamut from neoclassical theories in which matter is quantized but the fields are not (for example, the voluminous work of E.T. Jaynes), through classical theories where both matter and fields are treated classically, with vacuum fluctuations fields taken to be real but of a classical nature (for example, SED), to formalisms which eliminate the concept of vacuum fields altogether (for example, direct-action approaches investigated by A. 0. Barut and others; see the references cited below). Each of these will be examined briefly with regard to the possibility of useful "vacuum energy conversion." Neoclassical Theories of QED Vacuum Fluctuation Effects A major proponent of the neoclassical approach has been E. T. Jaynes, who has questioned whether the quantized vacuum field is physically real or merely an artifice of the second-quantized QED formalism. Based on the fact that the QED formalism permits expression of effects in terms of quantized "self" or "source" fields as an alternative to expression in terms of quantized vacuum fluctuation fields, Jaynes advanced the hypothesis that QED effects can be attributed to the self-fields of quantized matter without considering independent quantization of the vacuum fields, expressions in terms of the latter just being a placeholder for the former. Pointedly, with regard to QED being "the jewel of physics because of its extremely accurate predictions," Jaynes' position is that "those accurate experimental confirmations of QED come from the local source fields, which are coherent with the local state of matter," and that "the quantized free field only tags along (Reference 66)." Jaynes nonetheless arrived at a conclusion that one might call Jaynes' Axiom, namely, "This complete "A number of publications by E.T. Jaynes, A.O. Barut and their collaborators are based on the premise that second quantization 1s an unnecessary artifact of an over-idealized formalism. 26 UNCLASSIFIED/ /FOR OFFICIAL USC 014[9
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