Cooper pairs as low-energy excitations in the normal state
O. Tchernyshyov, Y. J. Uemura
Abstract
We discuss the normal state of a fermionic system in an idealized PSEUDOGAP REGIME, kB Tc < kB T << |Δ| << EF. Stable Cooper pairs induce a pseudogap of width |Δ| in the fermion energy spectrum. Near two dimensions, we find a Bose-like condensation temperature in this predominantly fermionic system.
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