This review focuses on the studies and computations of few-body systems of electrons and
holes in condensed matter physics. We analyze and illustrate the application of a variety of …

Starting from the single-particle Dirac Hamiltonian for charge carriers in monolayer transition
metal dichalcogenides (TMDs), we construct a four-band Hamiltonian describing interlayer …

The high-temperature superfluidity of two-dimensional dipolar excitons in two parallel
transition metal dichalcogenide (TMDC) layers is predicted. We study Bose-Einstein …

The electronic and structural properties of excitons and trions in monolayer transition metal
dichalcogenides are investigated using both a multiband and a single-band model. In the …

Graphene-based materials are thought to revolutionize entire industries. Therefore, many
researches are being carried on graphene theoretically and experimentally. On the other …

Using the quasiclassical concept of Berry curvature we demonstrate that a Dirac exciton—a
pair of Dirac quasiparticles bound by Coulomb interactions—inevitably possesses an …

Searching for new states of matter and unusual quasi-particles in emerging materials and
especially low-dimensional systems is one of the major trends in contemporary condensed …

In this brief review, the problem of electrostatic confinement of massless Dirac particles is
surveyed via a number of exactly solvable one‐and two‐body models. By considering …

We have investigated the interplay between band inversion and size quantization in
spherically shaped nanoparticles made from topological-insulator (TI) materials. A general …

We develop an analytically solvable model able to qualitatively explain nonhydrogenic
exciton spectra observed recently in two-dimensional (2D) semiconducting transition-metal …