At 11:21 AM 2/1/2010, Jones Beene wrote:

<http://www.nist.gov/public_affairs/bosenova.htm>http://www.nist.gov/public_affairs/bosenova.htm

Hmm …. No, it does not mention fusion as a possibility, but what about the “half the original atoms seem to have vanished” ?

Well the good folks at NIST got so many questions and flak about this provocative claim that they added an addenda and caveat to the article, later:

"The 'missing' atoms are almost certainly still around in some form, but just not in a form that we can detect them in our current experiment"… "The two likely possibilities are [mundane] … and do not indicate an energy anomaly.

But the "likely possibilities" are not mundane, this is what they say:

The fate of the missing atoms is still an open question, but the researchers suspect that they wind up either accelerated so greatly that they escape the trap undetected, or perhaps form molecules that are invisible to the detection system.

Sure. But ... what is the energy source for the explosion? What would accelerate them so greatly that they would "escape the trap undetected." Sure, short of that, "molecules that are invisible to the detection system" are a possibility, but this also begs the question. To suddenly expand as the atoms do, some sudden release of energy must occur. Sure it's a mystery.

Unless it's fusion. With a small condensate, and in the BEC state, any fusion could generate enough energy to disrupt the condensate, immediately. Energetic particles could be created that would, indeed, escape the trap, but it might be only one fusion, very difficult to detect a single event and distinguish it from background unless the experiment was specially set up to do this. The matter in the condensate is pure rubidium 85, with the electrons, and BEC fusion may not act in the ways that are expected from fusion.

A compressed BEC is exploding. What is being hypothesized by Takahashi and Kim are essentially compressed BECs. The issue is really if such condensates form at all; my primitive understanding for the Takahashi theory is that the confinement of two deuterium molecules in a single lattice position for an extremely short time produces an equivalent of very high pressure or very low temperature or both. From Takahashi's calculations, the time involved is about a femtosecond before the BEC will fuse with a 100% rate.

To my knowledge, nobody has refuted Takahashi's math, and the only problem is the question of whether or not a condensate will form; the presence of two deuterium molecules in a single lattice site would be extraordinarily rare, and so the question becomes "How rare?"

I would say that the condition of double confinement would be highly disruptive to the lattice site, but ... a condensate would be contained with much less pressure.... all I can do is guess and speculate. Four deuterons, as nuclei, forget it. They can't form the condensate and they would be exerting immense disruptive pressure from Coulomb repulsion. So what might be interesting would be attempts to study the presence of deuterium molecules in the lattice, close to the surface. Not easy to study, I'd think. Maybe even impossible, maybe the only signal we could get from inside the lattice would be a fusion event.

We do know that cold fusion is rare, very rare. Fortunately. Wouldn't it have been embarrassing if the University of Utah had vanished in a flash?

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