X-Message-Number: 13727 From: Date: Mon, 15 May 2000 05:30:23 EDT Subject: alternative QND systems The four ways to QND x-ray interferometer. 1/ I have described a QND interferometer with 3 laser stages: A nuclear x-ray laser is pumped by a dye laser, using the molecular-nuclear coupling. The dye laser is pumped by a shock wave chemical laser using a metal vapor. No more than 2 watts of x-ray energy is absorbed by the brain at one end, at the other, the pulsed rocket motor producing the shock wave is a 16 - 32 000 metric tons thrust monster. The giant power station is the price paid for a 3 stages system, each with minimum development uncertainty. The road is hard, but we know at each step where we go. 2/ There may be a two stage laser train to get the same result: Using a free electron laser (FEL), allows to pump directly the nuclear device without molecular coupling. The energy saving is tremendous, unfortunately, the FEL laser asks for a very high intensity electron beam, something not found in present day particle accelerator technology. This was a major stumbling block in the Star War directed energy weapon program. To overcome that with a private research is not a simple task. It would be a good objective to reduce running cost after the first brain reader has been built. 3/ Even more advanced is the Casimir-cooled atomic x-ray laser. I have said before that a nuclear laser must be used, because X-ray energy levels in the electron structure of atoms are short lived and can't produce long (10 000 km) coherence lengths. This is because electrons on internal orbits are stimulated to go down by virtual photons created from nothing by quantum uncertainety principle. In the Casimir effect, some frequencies in the void fluctuation spectrum are forbiden by a resonnator. If we discard the precise frequency able to stimulate the fall back of an electron in a atom, that particular state will becomes far more stable. Recent theoretical works have demonstrated the possibility to make resonators far smaller than an atom using an interference process in a nanoscale structure. A "small" chemical laser could then power that atomic X-ray laser. 4/ More astounding yet, is the quantum restored state laser. Here, the wave function of an electron inside an atom is forbiden to decay when it interacts with a virtual photon.This is done by coupling it in a fractal medium with another wave "frozen" in a long lived quantum system, for example the micro-flow of a common salt sample. That technology comes from the so called smart matter, a concept studied mostly for quantum computers. This could produce a table top brain reader cheap to use. Unfortunately, the technology may be one century from now or half that with a strong R and D program. Yvan Bozzonetti. Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=13727