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 …

This article reviews recent theoretical and experimental work on a new class of topological
material—topological Kondo insulators, which develop through the interplay of strong …

The prospect of controlling the electronic properties of materials via the vacuum fields of
cavity electromagnetic resonators is emerging as one of the frontiers of condensed matter …

A two-dimensional electron system in an external magnetic field, with Landau-level filling
factor ν= 1/2, can be transformed to a mathematically equivalent system of fermions …

Fractional quantum Hall (FQH) liquids contain extremely rich internal structures which
represent a whole new kind of ordering. We discuss the characterization and classification of …

Publisher Summary Quantum transport is conveniently studied in a two-dimensional
electron gas (2DEG) because of the combination of a large Fermi wavelength and large …

The dynamical theory of the edge excitations of generic fractional quantum Hall (FQH) states
is summarized and expanded. The low energy effective theory of the edge excitations for the …

The scaling theory of the transitions between plateaus of the Hall conductivity in the integer
quantum Hall effect is reviewed. In the model of two-dimensional noninteracting electrons in …

The existence of edge states and zero-energy modes in vortex cores is a hallmark of
topologically nontrivial phases realized in various condensed-matter systems such as the …

A topological insulator (TI) is an unusual quantum state in which the insulating bulk is
topologically distinct from vacuum, resulting in a unique metallic surface that is robust …