  We study persistent currents in semiconductor ballistic rings with spin-orbit
Rashba interaction. We use as a working model the multicomponent
Tomonaga-Luttinger liquid which arises due to the nonparabolic dispersion
relations of electrons in the rings with rather strong spin-orbit coupling.
This approach predicts some new characteristic features of persistent currents,
which may be observed in experimental studies of semiconductor ballistic rings.

Mesoscale and Nanoscale Physics;Strongly Correlated Electrons