High-Tc Superconductivity via BCS and BEC Unification: A Review

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Though commonly unrecognized, a superconducting BCS condensate consists of equal numbers of two-electron (2e) and two-hole (2h) Cooper pairs (CPs). A complete (in the sense that 2h-CPs are not ignored) boson-fermion statistical model, however, is able to depart from this perfect 2e-/2h-CP symmetry and yields robustly higher T_c's without abandoning electron-phonon dynamics. The complete model reduces to all the known statistical theories of superconductors, including the BCS-Bose "crossover" picture but going considerably beyond it.
Book chapter in "Horizons in Superconductivity Research" (Nova Science Publishers, NY, in press). 31 pages, 13 ps figures

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