AHARONOV-BOHM EFFECT FOR ELECTRONS ON A LIQUID-HELIUM SURFACE

A method for obtaining finite electronic systems on a liquid-helium su rface is proposed. If a thin film of liquid helium lies above a bottom capacitor plate made in the form of metal rings connected with one an other, then electrons will accumulate in potential troughs near these rings. The purity of the helium surface, i.e., the absence of impuriti es and pinning centers on it, affords an excellent opportunity for inv estigating the Aharonov-Bohm effect in an ideal ring of a Wigner cryst al and a Luttinger liquid. (C) 1998 American Institute of Physics. [S0 021-3640(98)01006-8].