  The pseudo-spin model for double layer quantum Hall system with total landau
level filling factor $\nu=1$ is discussed. Unlike the "traditional" one where
interlayer voltage enters as static magnetic field along pseudo- spin hard
axis, in our model we consider applied interlayer voltage as a frequency of
precessing pseudo-magnetic field lying into the easy plane. It is shown that a
Landau-Lifshitz equation for the considered pseudo magnetic system well
describes existing experimental data. Besides that, the mentioned model
predicts novel directed intra-layer transport phenomenon in the system:
unidirectional intra-layer energy transport is realized due to interlayer
voltage induced motion of topological kinks. This effect could be observed
experimentally detecting counter-propagating intra-layer inhomogeneous charge
currents which are proportional to the interlayer voltage and total topological
charge of the pseudo-spin system.
