Elasticity typically refers to a material's ability to store energy, whereas viscosity refers to a
material's tendency to dissipate it. In this review, we discuss fluids and solids for which this is …

Electrochemical water splitting to produce green hydrogen offers a promising technology for
renewable energy conversion and storage, as well as realizing carbon neutrality. The …

The electron–hole plasma in charge-neutral graphene is predicted to realize a quantum
critical system in which electrical transport features a universal hydrodynamic description …

Electrocatalytic water splitting is one of the most promising sustainable energy conversion
technologies, but is limited by the sluggish electrochemical reactions. Inorganic …

We review the mathematical speed limits on quantum information processing in many-body
systems. After the proof of the Lieb–Robinson Theorem in 1972, the past two decades have …

Hydrodynamics, which generally describes the flow of a fluid, is expected to hold even for
fundamental particles such as electrons when inter-particle interactions dominate. Although …

In the past few decades, numerous heat conduction models extending beyond Fourier's
have been developed to account for large gradients, fast phenomena, wave propagation …

An electrical conductor subjected to a magnetic field exhibits the Hall effect in the presence
of current flow. Here, we report a qualitative deviation from the standard behavior in electron …

The last few years have seen an explosion of interest in hydrodynamic effects in interacting
electron systems in ultra-pure materials. One such material, graphene, is not only an …

These are lecture notes for a series of lectures given at the Les Houches Summer School on
Integrability in Atomic and Condensed Matter Physics, 30 July to 24 August 2018. The same …