PERSISTENT CURRENT IN A ONE-DIMENSIONAL RING OF FRACTIONALLY CHARGED QUASI-PARTICLES

The Aharonov-Bohm effect in a one-dimensional (1D) ring containing a g as of fractionally charged excitations is considered. It is shown that the low temperature behavior of the system is identical to that of fr ee electrons with (integer) charge e. Anomalous oscillations of the pe rsistent current amplitude with temperature are predicted to occur as a direct manifestation of the fractional nature of the quasiparticle c harge. A ID conducting ring with gate induced periodical potential is discussed as a possible setup For an experimental observation of the p redicted phenomenon.