This is a review of the Sachdev-Ye-Kitaev (SYK) model of compressible quantum many-
body systems without quasiparticle excitations, and its connections to various theoretical …

The appearance of the Planckian time τ Pl= ℏ/k BT is reviewed in both conventional and
unconventional metals. A pedagogical discussion of the various different timescales …

We carefully revisit the electron-boson scattering problem, going beyond weak-coupling
expansions and popular semiclassical treatments. By providing numerically exact results …

Spin–orbit coupling (SOC) is a fundamental physical interaction, which describes how the
electrons' spin couples to their orbital motion. It is the source of a vast variety of fascinating …

We develop a theory of superconducting pairing in low-density strontium titanate due to the
quadratic coupling of electron density to soft transverse optical phonons first proposed by …

The mechanism of superconductivity in materials with aborted ferroelectricity and its
emergence out of a dilute metallic phase in systems like doped SrTiO 3 is an outstanding …

Spatial correlations between atoms can generate a depletion in the energy dispersion of
acoustic phonons. Two well-known examples are rotons in superfluid helium and the Kohn …

Fermi liquids (FLs) display a quadratic temperature (T) dependent resistivity. This can be
caused by electron-electron (ee) scattering in presence of inter-band or Umklapp scattering …

Abstract In 1937, Baber, Landau, and Pomeranchuk postulated that collisions between
electrons generates a contribution to the electric resistivity of metals with a distinct T2 …

Crystals and glasses differ by the amplitude and the temperature dependence of their
thermal conductivity. However, there are crystals known to display glasslike thermal …