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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.
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UNCLASSIFIED/ ,'P81il 8PPl!ltllt ".JI! Gilt I coupling strength (aka quark-gluon coupling) and r is the gluon field strength tensor (tensor indices suppressed). The quark condensate energy density contribution to B9 is down by two orders of magnitude from this estimate. Gogohia argues that the bag constant determines the energy which can be released from the NPC vacuum, which he considers to be a "perpetuum source of infinite energy." He did not propose a detailed physical mechanism that specifies how to release a finite portion of the bag constant energy or whether one could introduce some type of cyclic process to extract energy. This requires further research in order to resolve this question. Summary: ZPF Modes and Vacuum Field Energy The previous examples illustrate how the vacuum becomes degradable or can decay when perturbed under certain conditions. In each of the examples, the vacuum ZPF modes were perturbed by boundary conditions, quantum optics effects, or interacting/externally applied fields in such a way as to drive the QED field's vacuum state energy below zero, or the QED vacuum undergoes decay along with the spontaneous production of particle-antiparticle pairs, or the vacuum undergoes a phase change and releases energy as in the QCD case. The (electromagnetic) Casimir effect is an example in which certain ZPF modes are excluded by physical boundary conditions that perturb the free-space vacuum ZPF modes, thus driving the vacuum electromagnetic field energy below zero inside a Casimir cavity. In accordance with the discussion in Sections III and V, the ZPF modes serve only as a placeholder for a quantum field's vacuum state calculations. Therefore, the "hardwired" ZPF modes cannot be driven below the ground state. It is only a quantum field's overall (renormalized) vacuum state energy that can be driven down to or below the ground state. The QED vacuum (in both of its incarnations: virtual bosonic electromagnetic vacuum and virtual fermionic Dirac vacuum) and the QCD vacua are degradable while both can also undergo decay via numerous mechanisms. Energy release is predicted for some of the decay mechanisms while it has already been observed via the Casimir effect and the inflationary expansion of the universe. Therefore, one can conjecture that the key to exploring the possibility of extracting energy from the vacuum is to invent new boundary conditions or new combinations of boundary conditions as well as new methods of modifying the quantum vacuum boundary conditions that perturb the ZPF modes of any quantum field under study. Quantum vacuum boundary conditions can take many different forms: they can be physical boundaries like the conductor or dielectric plates used in Casimir cavities, which can also involve complex cavity geometries; they can be topological-that is, complex spacetime geometries with special coordinate constraints; or they can be in the form of interacting or externally applied fields such as gravitational, electromagnetic, electroweak, scalar, QCD, massive fields or dense, moving nuclear matter on the quantum vacuum, and so forth. This is a topic that is in need of dedicated theoretical and experimental research (Reference 62, 91, 103). VI. Conclusion: The Way Forward What are the conclusions that can be drawn from the considerations presented in this report regarding the concept of continuous conversion of energy from the quantum electromagnetic vacuum, the Dirac vacuum, or even the QCD vacua? 37 UNCLASSIFIED/ ,'F8"1 8FFU!lit.l! l!l!il! 8111!¥
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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.