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 Hubbard model is the simplest model of interacting fermions on a lattice and is of similar
importance to correlated electron physics as the Ising model is to statistical mechanics or the …

In traditional metals, the temperature (T) dependence of electrical resistivity vanishes at low
or high T, albeit for different reasons. Here, we review a class of materials, known as …

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 …

In electrically conductive solids, the Wiedemann-Franz law requires the electronic
contribution to thermal conductivity to be proportional to electrical conductivity. Violations of …

Strong interactions in many-body quantum systems complicate the interpretation of charge
transport in such materials. To shed light on this problem, we study transport in a clean …

The anomalous transport of important materials such as high-temperature superconductors
and other 'bad metals' is not well understood theoretically. In an incoherent metal, transport …

We explore the interplay of electron-electron correlations and spin-orbit coupling in the
model Fermi liquid Sr 2 RuO 4 using laser-based angle-resolved photoemission …

Strange or bad metallic transport, defined by incompatibility with the conventional
quasiparticle picture, is a theme common to many strongly correlated materials, including …

While the recent advances in topology have led to a classification scheme for electronic
bands described by the standard theory of metals, a similar scheme has not emerged for …