Friday, August 19, 2016

New findings about high-temperature super-conductors

Bozovic et al have reported rather interesting new findings about high Tc super-conductivity: for over-critical doping the critical temperature is proportional to the density of what is identified as Cooper pairs of electronic super-fluid. Combined with the earlier findings that super-conductivity is lost - not by splitting of Cooper pairs - but by reduction of the scale of quantum coherence, and that below minimal doping fraction critical temperature goes abruptly to zero, allows to add details to the earlier TGD inspired model of high Tc super-conductivity. The super-conductivity would be indeed lost by the reconnection of flattened square shaped long flux loops to shorter loops of pseudogap phase. Quantum coherence would be reduced to smaller scale as heff is reduced. Transversal flux tube "sound waves" would induce the reconnections. Electrons at flux loops would stabilize them by contributing to the energy density and thus to the inertia increasing the string tension so that the average amplitude squared of oscillations is reduced and critical temperature increases with electron density.

For details see the chapter Quantum Model for Bio-Superconductivity: I of "TGD and EEG" or the article New findings about high-temperature super-conductors.

For a summary of earlier postings see Latest progress in TGD.

Articles and other material related to TGD.

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