I believe that the coherence length is equal to the downshifted Compton >wavelength.
Do you have a formula for this, and how does it differ from the definition of the De Broglie wavelength? BTW, did you notice the "Fermi velocity"? Regards, Robin van Spaandonk The Fermi velocities are quite high. Electrons in the condution band travel at thermal velocites which are quite a bit lower. I not sure of the velocity distribution in a superconductive band. As far as the coherience lenght goes, there are may ways of looking at this. We can look at the individual pairs of electrons, as you do. I tend to look at the entire condensed state. In this state the electrons are Indistinguishable. They are part of the whole collective state. It the ground frequency of this collective state is what I am interested in. I would also like to know the velocity distribution of the protons in a proton conductor. I believe that they travel at low thermal velocities. These could also act as a plasma with the velocity proportionate to The density of the state. The velocity of the state should not affect the strength of the phonons that bind the state. This binding force is not a function of the deBroglie wavelength. It is a function of spin pairing. I'm not sure of all of the parameters involved with spin pairing. Cooling lowers the momentum MV of the electrons. This momentum tends to break the bonds of the binding. I have used cooling and vibrations of a certain frequency to increase the strength of the phonos that bind the condensate. I need to know much more about these things. Frank Znidarsic **************Ideas to please picky eaters. Watch video on AOL Living. (http://living.aol.com/video/how-to-please-your-picky-eater/rachel-campos-duffy/ 2050827?NCID=aolcmp00300000002598)
