Pairing in the Presence of a Pseudogap

T. A. Maier, P. Staar, D. J. Scalapino

Evidence that the pseudogap (PG) in a near-optimally doped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ sample destroys the BCS logarithmic pairing instability [1] raises again the question of th…