Documents / Report
This Defense Intelligence Reference Document (DIA-08-1004-004), dated 6 April 2010, was produced by the Defense Intelligence Agency under its Advanced Aerospace Weapon System Applications (AAWSA) Program. It is one of a series of advanced technology reports from FY 2009. It reviews the general relativity physics of traversable wormholes and flat-faced "stargate" solutions for faster-than-light travel. It also covers the exotic negative energy these would need, proposed lab methods for generating it such as the Casimir effect and squeezed vacuum, and the constraints involved.
UNCLASSIFIED/;«F&A 8FFHil.l1k WE&i a••k>/ amplified to substantial energies (with orders of magnitude greater peak power) without encountering intensity-related problems. The extreme output beam power, fields and physical conditions that have been achieved by ultrahigh-intensity tabletop lasers are (Reference 39): • Power Intensity"" 1019 to 10 30 W/m 2 (10 34 W/m 2 using SLAC as a booster). • Peak Power Pulse :c:: 10 3 fs. • Electric field, E"" 1014 to 1018 Vim [note: compare this with the critical quantum electrodynamic (QED) vacuum breakdown E-field intensity, Ee= 2m,,2c3/11e"" 10 18 V/m, defined by the total rest-energy of an electron-positron pair created from the vacuum divided by the electron's Compton wavelength] 6 . • Magnetic field, B ""several x 106 Tesla (note: the critical QED vacuum breakdown B- field intensity is B~ = Ejc"' 1010 Tesla). • Ponderomotive Acceleration of Electrons "" 1017 to 1030 go (go is the acceleration of gravity near the Earth's surface, 9.81 m/s2). • Light Pressure == 109 to 10 15 bars. • Plasma Temperatures > 1010 K. The vigilant reader might assert that the electric and magnetic fields generated by ultrahigh-intensity lasers are not static. But in fact, these fields are static over the duration of the pulse-width while at peak intensity. The data above illustrates that ultrahigh-intensity lasers can generate an electric field energy density ~ 10 16 to 10 28 J/m 3 and a magnetic field energy density~ 10 19 J/m 3 . However, there remains the problem of engineering this type of experiment because classical electromagnetic theory states that every observer associated with the experiment will see a non- negative energy density that is oc £ 2 + B2 , where E and Bare measured in an observer's reference frame. It is not known how to increase the tension in these fields using current physics, but some new physics may provide an answer. This technical problem must be left for future investigation. 2. Squeezed Quantum Vacuum Substantial theoretical and experimental work has shown that in many quantum systems the limits to measurement precision imposed by the quantum vacuum zero- point fluctuations (ZPF) can be breached by decreasing the noise in one observable (or measurable quantity) at the expense of increasing the noise in the conjugate observable; at the same time the variations in the first observable, say the energy, are reduced below the ZPF such that the energy becomes "negative." "Squeezing" is thus the control of quantum fluctuations and corresponding uncertainties, whereby one can squeeze/reduce the variance of one (physically important) observable quantity provided the variance in the (physically unimportant) conjugate variable is stretched/increased. The squeezed quantity possesses an unusually low variance, meaning less variance than would be expected on the basis of the equipartition theorem. One can in principle "Electron mass, m,, = 9.11 x 10-'' kg; electron charge, e = 1.602 x 10-' 9 C. 12 UNCLASSIFIED/75f8R 8ffl@Isltl H!H!! 8HLY
Not linked to a story yet.
Report, from the dia collection. The PDF is mirrored here; the original link is above. 42 pages are in the text index: search them above, or from the library's search.