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Pseudogap in 1d revisited

Oleg Tchernyshyov
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Abstract

Two decades ago, Sadovskii found an exact solution of a model describing a pseudogap in electron energy spectrum (first introduced by Lee, Rice and Anderson). The discovery of a pseudogap in high-Tc superconductors has revived the interest to his exact solution. I review the model with the emphasis on physical content, point out an error in the original Sadovskii's solution and explain which problem he actually solved. A recent incorporation of Sadovskii's ideas into a description of "hot spots" on the Fermi surface in cuprate superconductors (Schmalian, Pines and Stojkovic) is briefly discussed.

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Oleg Tchernyshyov. 1998-09-25. Pseudogap in 1d revisited. https://doi.org/10.1103/physrevb.59.1358

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