MOBILITY OF ELECTRONS IN A QUASI-ONE-DIMENSIONAL CONDUCTING CHANNEL ON THE LIQUID-HELIUM SURFACE

The mobility of electrons scattered by ripplons and gas atoms in a qua si-one-dimensional channel on the surface of liquid helium is investig ated theoretically. Nonmonotonic temperature dependence of the mobilit y below 0.5 K is predicted. Nonlinear effects leading to strong depend ence of the mobility on driving electric field are also discussed. The calculations are carried out in the single-particle approximation and in the complete control regime which takes interelectron correlations into account. The results allow us to check the role of electron corr elations in the system.