The ground-state phase diagram of a two-dimensional Bose system with dipole-dipole
interactions is studied by means of a quantum Monte Carlo technique. Our calculation …

Carbon is one of the most interesting chemical elements. It not only forms the basis of the
vast kingdom of organic substances but itself forms various crystals and nanostructures. This …

Coherent condensate states of particles obeying either Bose or Fermi statistics are in the
focus of interest in modern physics. Here we report on condensation of collective excitations …

Графен представляет собой двумерную структуру, составленную из атомов углерода,
которые расположены в узлах кристаллической решетки типа пчелиные соты и …

Abstract A one-dimensional (1D) Bose system with dipole-dipole repulsion is studied at zero
temperature by means of a quantum Monte Carlo method. It is shown that, in the limit of …

New effects in systems of quantum dipoles are discussed, such as anisotropic superfluidity
in external fields, strong correlations, crystallization, and the supersolid phase. Roton …

The influence of a random field induced by impurities, boundary irregularities etc. on the
superfluidity of a quasi-two-dimensional (2D) system of spatially indirect excitons in coupled …

We predict the effect of the roton instability for a two-dimensional weakly interacting gas of
tilted dipoles in a single homogeneous quantum layer. Being typical for strongly correlated …

By doing quantum Monte Carlo ab initio simulations we show that dipolar excitons, which
are now under experimental study, actually are strongly correlated systems. Strong …

The collective properties of indirect excitons in coupled quantum wells (CQWs) are
considered. The energy of the ground state of the exciton liquid as a function of the density …