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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/ iF&lil: 8FFlil.l1k MEii ODIi Y smaller than that of the initial 8 = O vacuum state made by virtual fermions fully filling its negative energy spectrum, then the vacuum state gains energy and must decay from the initial vacuum state to the final vacuum state by quantum field fluctuations. The difference in vacuum energies between the two vacuum states must be released. Xue makes all the usual vacuum expectation value renormalization calculations upon r:F and u, and found that the energetic difference between the vacuum states B = O and 8 + O is negative, indicating that the vacuum energy of the B * O state is smaller than the vacuum energy of the B = 0 state; that is, the vacuum state gains energy when the external magnetic field is applied to it. He shows that this effect occurs because in a finite volume of space and with a finite momentum cutoff at the Planck scale AP, the total number of fermion states in the vacua of negative energy spectra £F and £Lare finite and all these fermion states of negative energy levels from -AP to -mc 2 are fully filled. The negative energy spectrum r:F is not degenerate, while the negative energy spectrum EL is degenerate, and the total numbers of fermion states in both cases are the same. On the basis of quantum field fluctuations toward the lowest energy state and the Pauli principle, when the external magnetic field is applied upon the vacuum, the vacuum reorganizes itself by fully filling all fermion states according to the degenerate negative energy spectrum £L, instead of the non degenerate £F. As a consequence, the vacuum makes its total energy lower. The energy released by this decay process is: 6.E = -SaB'V / 3rc, where Vis the volume of space occupied by the external magnetic field, and a is the electromagnetic fine structure constant. In principle, this effect can occur for any value of the applied magnetic field, and in this particular decay process a non-critical magnetic field is required. Xue predicts possibly observable effects such as the vacuum acting like a paramagnetic medium that effectively screens the strength of the external magnetic field to a smaller magnitude; the associated ZPF could lead to the emission of neutrino-antineutrino pairs from the vacuum; and photons will be spontaneously emitted. He estimated that the released vacuum energy (6.E) will be about 1 percent of the total energy stored in the external magnetic field, so it is not yet clear whether this vacuum decay mechanism will lead to any beneficial energy extraction. Melting the QCD Vacuum The idea of supercriticality as discussed in Section V also has applications in other field theories, such as those of pion fields, gluon fields (quantum chromodynamics or QCD), and gravitational fields (general relativity). Static fields that are strong enough to cause the normal vacuum, which is devoid of real particles, to break down into a new vacuum in which real particles exist is also predicted for these fields. A review a vacuum decay concept that is different from supercriticality in QCD theory follows. In their study of the structured vacuum, Rafelski and MUiier (Reference 54) and Rafelski (Reference 55) analyze the nature of the strongly interacting (QCD) vacuum and elucidate its character from the Standard Model of particle physics and high energy particle accelerator data. They concluded that in addition to the electroweak vacuum (that is, the unified electromagnetic and weak force vacua) there exists a dual QCD vacuum structure: one vacuum structure that is everywhere in space and consists of a complicated soup of interacting gluons which confine the quarks - this is called the ordinary or "frozen" vacuum; and another vacuum structure that is found inside 35 UNCLASSIFIED/ ;«F&lil: 8FFHiiI.«1k Wlilii a,.klf
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