Frictional drag between non-equilibrium electron gases

Frictional drag between spatially separated two-dimensional electron gases mediated by virtual phonon exchange

We have calculated the temperature dependence of the frictional drag between spatially separated quantum wells with parallel two-dimensional electron gases due to interlayer electron-electron interaction mediated by virtual exchange of acoustic phonons due to piezoelectric and deformation potential interaction. It is shown that the frictional drag is dominated by the piezoelectric coupling. Acc...

Optical-phonon-induced frictional drag in coupled two-dimensional electron gases

Non - equilibrium layered lattice gases *

We have studied several nonquilibnum lattice gases with paniclexonsening dynamics. The lattice consists of two planes, and particles interact (mad) only with nearest-neighbour particles within the same plane but may hop to the other. In addition to the standard heat bath at temperalure T, a mechaoism exists that biases a principal axis, namely. we assume either that particles are also driven by...

Frictional drag between quantum wells mediated by fluctuating electromagnetic field

We use the theory of the fluctuating electromagnetic field to calculate the frictional drag between nearby two-and three dimensional electron systems. The frictional drag results from coupling via a fluctuating electromagnetic field, and can be considered as the dissipative part of the van der Waals interaction. In comparison with other similar calculations for semiconductor two-dimensional sys...

Shock Profiles for Non Equilibrium Radiating Gases

We study a model of radiating gases that describes the interaction of an inviscid gas with photons. We show the existence of smooth traveling waves called ’shock profiles’, when the strength of the shock is small. Moreover, we prove that the regularity of the traveling wave increases when the strength of the shock tends to zero.