We review the intermediate coupling model for treating electronic correlations in the
cuprates. Spectral signatures of the intermediate coupling scenario are identified and used …

Explicit and implicit experimental evidence for charge density wave (CDW) presence in high‐
Tc superconducting oxides is analyzed. The theory of CDW superconductors is presented. It …

The excitations responsible for producing high-temperature superconductivity in the copper
oxides have yet to be identified. Two promising candidates are collective spin excitations …

We review a number of experimental techniques that are beginning to reveal fine details of
the bosonic spectrum α 2 F (Ω) that dominates the interaction between the quasiparticles in …

We report on the ab-plane reflectance of the high temperature superconductor Bi 2 Sr 2
CaCu 2 O 8+ δ (Bi-2212). Measurements on samples spanning the do** range from …

We have performed numerical studies of the Hubbard-Holstein model in two dimensions
using determinant quantum Monte Carlo (DQMC). Here, we present details of the method …

We used high-resolution scanning tunneling spectroscopy to study the hole-doped iron
pnictide superconductor Ba 0.6 K 0.4 Fe 2 As 2 (T c= 38 K). Features of a bosonic excitation …

We demonstrate that an Eliashberg inversion of the optical self-energy, based on maximum-
entropy considerations, can be used to extract in numerical form the bosonic excitation …

Confirmation of the phononic origin of Cooper pair formation in superconductors came with
the demonstration that the interaction was retarded and that the corresponding energy …

Normal state optical spectroscopy on single crystals of the new iron arsenide
superconductor Ba 0.55 K 0.45 Fe 2 As 2 shows that the infrared spectrum consists of two …