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 …

Electrochromism is the phenomenon of certain materials reversibly changing their colours or
optical properties through redox reactions under an applied electric field, which has found …

The interplay between topology and correlations can generate a variety of quantum phases,
many of which remain to be explored. Recent advances have identified monolayer WTe2 as …

Since World War II, there have been dramatic increases in metabolic, immune, and cognitive
diseases, including obesity, diabetes, asthma, allergies, inflammatory bowel disease, and …

The observation of a superconducting phase, an intertwined insulating phase, and a
continuous transition between the two at a commensurate filling of ν= 1 in bilayers of twisted …

In metals, electrons in a magnetic field undergo cyclotron motion, leading to oscillations in
physical properties called quantum oscillations. This phenomenon has never been seen in a …

In strongly correlated materials, quasiparticle excitations can carry fractional quantum
numbers. An intriguing possibility is the formation of fractionalized, charge-neutral fermions …

In metals, orbital motions of conduction electrons on the Fermi surface are quantized in
magnetic fields, which is manifested by quantum oscillations in electrical resistivity. This …

The search for a Fermi surface in the absence of a conventional Fermi liquid has thus far
yielded very few potential candidates. Among promising materials are spin-frustrated Mott …

Samarium hexaboride (SmB6) is an example of a Kondo insulator, in which strong electron
correlations cause a band gap to open. SmB6 hosts both a bulk insulating state and a …