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We study persistent currents in semiconductor ballistic rings with spin-orbitRashba interaction. We use as a working model the multicomponentTomonaga-Luttinger liquid which arises due to the nonparabolic dispersionrelations 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.Comment: 13 pages, 8 figure

Persistent currents in a multicomponent Tomonaga-Luttinger liquid: Application to a mesoscopic semiconductor ring with spin-orbit interaction