Abstract
The renormalized pairon frequency, corresponding to the excited pairon frequency, along with perturbed and renormalized phonon frequencies have been evaluated on the basis of many-body quantum dynamical Green’s function theory via an almost complete Hamiltonian, which includes the effects of electrons, phonons, anharmonicities, defects, and electron-phonon interactions. The numerical and graphical assessment of the obtained results has been executed for La2-xSrxCuO4 cuprate high-temperature superconductor. The evolution of the renormalized pairon frequency below and above the transition temperature (Tc) turns up as an unprecedented component of the present formulation, as it provides the essence of the pseudogap phenomena observed in cuprates.
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