The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

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 …

The effectively massless, relativistic behaviour of graphene's charge carriers—known as
Dirac fermions—is a result of its unique electronic structure, characterized by conical …

We review recent experimental and theoretical results on the interaction between single-
particle excitations and collective spin excitations in the superconducting state of high-Tc …

The precise momentum dependence of the superconducting gap in the iron-arsenide
superconductor Ba 1− x K x Fe 2 As 2 (BKFA) with T c= 32 K was determined from angle …

Recently, it was demonstrated that the quasiparticle dynamics, the layer-dependent charge
and potential, and the c-axis screening coefficient could be extracted from measurements of …

We review the resonating valence bond (RVB) theory of high-temperature superconductivity
using Gutzwiller projected wave functions that incorporate strong correlations. After a …

Over the recent years, electronic surface states have been used for a detailed spectroscopic
study of the electron–phonon (e–ph) interaction, both experimentally and theoretically. This …

Photoemission studies show the presence of a high-energy anomaly in the observed band
dispersion for two families of cuprate superconductors, Bi 2 Sr 2 CaCu 2 O 8+ δ and La 2-x …

The question of whether one should speak of a “pairing glue” in the Hubbard and tJ models
is basically a question about the dynamics of the pairing interaction. If the dynamics of the …