Criticality problems energy spectrum

K —> 71 transitions. Also, in the case of jt —> 7t transitions, efficient energy dissipation occurs in polyimides although dris latter absorption may lead to a weaker n-bond and long-lived excited states. Subsequent reactions (possibly with a reactive ambient) can lead to modification or ablation. The UV absorbance spectrum of BPDA-PDA is shown in Figure 5.7. At 308nm, o BPOA-PDA 1 X 10 cm Thus, polyimides, theoretically, are ideal dopant candidates for PTFE. However, the critical problem of incorporating polyimide evenly and at a suitable dopant-domain size in the PTFE matrix was only recently solved. 2... 

It is a fundamental problem in solid-state physics, that due to a misleading many-body treatment the true nature of the crystalline structure beyond the B-O approximation was never revealed. This is the reason why the BCS theory, in spite of the fact that Frohlich was critical to it and disregarded it, survives more than a half of century up till now. The BCS theory is based on the naive belief that the structure of superconductors is the same as the structure of conductors, i.e. that it is defined through the B-0 approximation. As we have shown in our previous work [21], there is no mechanism, which could split the degenerate electronic spectrum of conductors and open an energy gap at the adiabatic level. 

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