re: Ch 9 of Sir Martin Rees's "Our Final Hour" on exotic "Ice 9" type "Doomsday WMD" able to destroy entire Level I Hubble universes in Max Tegmark's sense of May 2003 Scientific American, like our little universe for example - a mere speck on Lenny Susskind's "Landscape." ;-)

Thanks Gary, this is quite relevant to what I have been talking about.

In my theory "gravity shielding" means creating a region of dark energy exotic vacuum with negative pressure by a variant on the Josephson effect using a real superconductor "impedance matched" to the vacuum.

/\zpf = (Planck Area)^-1[(Planck Volume)|Vacuum Coherence|^2 - 1]

with signature +---

tuv(Exotic Vacuum) = [(Witten String Tension)/(QED dimensionless coupling)]/\zpfguv

On Wednesday, December 31, 2003, at 02:22 PM, Gary S. Bekkum wrote:

----- Original Message -----

From: "Gary S. Bekkum"

Sent: Saturday, October 11, 2003 8:17 AM

Subject: CHINA - Quantum Vacuum Reaction WMD research?

Chinese "Vacuum Reaction" WMD research? Note Podkletnov references...

...also note that author is from Institute of High Energy Physics in

China;

new multi-quark states under are investigation there...

Renormalizable Quantum Gauge General Relativity

http://www.arxiv.org/abs/gr-qc/0309041

Authors: Ning Wu

Comments: 138 pages, no figure

The quantum gauge general relativity is proposed in the framework of

quantum

gauge theory of gravity. It is formulated based on gauge principle which

states that the correct symmetry for gravitational interactions should be

gravitational gauge symmetry. The gravitational gauge group is studied in

the paper. Then gravitational gauge interactions of pure gravitational

gauge

field is studied. It is found that the field equation of gravitational

gauge

field is just the Einstein's field equation. After that, the gravitational

interactions of scalar field, Dirac field and vector fields are studied,

and

unifications of fundamental interactions are discussed. Path integral

quantization of the theory is studied in the paper. The quantum gauge

general relativity discussed in this paper is a perturbatively

renormalizable quantum gravity, which is one of the most important

advantage

of the quantum gauge general relativity proposed in this paper. A strict

proof on the renormalizability of the theory is also given in this paper.

Another important advantage of the quantum gauge general relativity is

that

it can explain both classical tests of gravity and quantum effects of

gravitational interactions, such as gravitational phase effects found in

COW

experiments and gravitational shielding effects found in Podkletnov

experiments. For all classical effects of gravitational interactions, such

as classical tests of gravity and cosmological model, quantum gauge

general

relativity gives out the same theoretical predictions as that of the

Einstein's general relaitvity.

Gravitational Shielding Effects in Gauge Theory of Gravity

http://www.arxiv.org/abs/hep-th/0307225

Authors: Ning Wu

Comments: 13 pages, no figure

In 1992, E.E.Podkletnov and R.Nieminen find that, under certain

conditions,

ceramic superconductor with composite structure has revealed weak

shielding

properties against gravitational force. In classical Newton's theory of

gravity and even in Einstein's general theory of gravity, there are no

grounds of gravitational shielding effects. But in quantum gauge theory of

gravity, the gravitational shielding effects can be explained in a simple

and natural way. In quantum gauge theory of gravity, gravitational gauge

interactions of complex scalar field can be formulated based on gauge

principle. After spontaneous symmetry breaking, if the vacuum of the

complex

scalar field is not stable and uniform, there will be a mass term of

gravitational gauge field. When gravitational gauge field propagates in

this

unstable vacuum of the complex scalar field, it will decays exponentially,

which is the nature of gravitational shielding effects. The mechanism of

gravitational shielding effects is studied in this paper, and some main

properties of gravitational shielding effects are discussed.

Key paper is T. W. B. Kibble's "Lorentz Invariance and the Gravitational Field" JMP 1961 reproduced in "Gauge Theories in the Twentieth Century" John C Taylor, Imperial College Press (2001), p. 119.

R. Utiyama Phys. Rev. 101, 1597 (1956) applied the local gauge force principle (e.g. Yang-Mills for weak and strong forces Phys. Rev 96, 191 (1954) anticipating modern QCD and standard U(1)SU(2)SU(3) model with 17 - 25 free parameters) not to the 4-parameter translation subgroup of the Poincare group, but to the 6-parameter Lorentz group of rigid space-time rotations. Kibble points out problems with Utiyama's approach and instead includes the 4-parameter translation subgroup, i.e. the entire Poincare group leaving out the 5 additional parameters (dilation and hyperbolic uniform acceleration) of the zero rest mass conformal group used by Roger Penrose in twistor theory.

Kibble finds that there is a small torsion field coupling only when Tuv(Matter) =/= 0 and that Einstein's

Ruv = 0

is obeyed in "vacuum". This was before the recent discovery of "dark energy" that Mike Turner says may well be w = pressure/energy density = -1 exotic vacuum with dominating negative pressure causing the Universe to accelerate its expansion rather than slowing down. This issue is still controversial due to recent NEWTON data as interpreted by some. It's too early to know.

Thanks to Waldyr Rodrigues Jr for reminding me about the NEWTON data crucial test of my model.