55 citations · 124 across the 5 of their papers we have counts for
5 papers
Electron-hole superfluidity controlled by a periodic potential
O. L. Berman, R. Ya. Kezerashvili, Y. E. Lozovik +1
We propose to control of an electron-hole superfluid in semiconductor coupled quantum wells and double layers of two-dimensional (2D) material by an external periodic field. This c…
Sensitive linear response of an electron-hole superfluid in a periodic potential
O. L. Berman, R. Ya. Kezerashvili, Y. E. Lozovik +1
We consider excitons in a two-dimensional periodic potential and study the linear response of the excitonic superfluid to an electromagnetic wave at low and high densities. It turn…
Coupling of two Dirac particles
O. L. Berman, R. Ya. Kezerashvili, K. Ziegler
A study of the formation of excitons as a problem of two Dirac particles in a gapped graphene layer and in two gapped graphene layers separated by a dielectric is presented. In the…
Turbulence in a Bose-Einstein Condensate of Dipolar Excitons in Coupled Quantum Wells
O. L. Berman, R. Ya. Kezerashvili, G. V. Kolmakov +1
The nonlinear dynamics of a Bose-Einstein condensate (BEC) of dipolar excitons trapped in an external confining potential in coupled quantum wells is analysed. It is demonstrated t…
Phase transitions of electron-hole and unbalanced electron systems in coupled quantum wells in high magnetic field
Yu. E. Lozovik, O. L. Berman, V. G. Tsvetus
Superfluidity of spatially separated electrons and holes and unbalanced two-layer electron system in high magnetic field is considered. The temperature of the Kosterlitz-Thouless t…