@article{krcmar_gendiar_mosko_nemeth_vagner_mitas_2008, title={Persistent current of correlated electrons in mesoscopic ring with impurity}, volume={40}, ISSN={["1873-1759"]}, DOI={10.1016/j.physe.2007.09.074}, abstractNote={The persistent current of correlated electrons in a continuous one-dimensional ring with a single scatterer is calculated by solving the many-body Schrodinger equation for several tens of electrons interacting via the electron–electron (e–e) interaction of finite range. The problem is solved by the configuration-interaction (CI) and diffusion Monte Carlo (DMC) methods. The CI and DMC results are in good agreement. In both cases, the persistent current I as a function of the ring length L exhibits the asymptotic dependence I∝L-1-α typical of the Luttinger liquid, where the power α depends only on the e–e interaction. The numerical values of α agree with the known formula of the renormalization-group theory.}, number={5}, journal={PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES}, author={Krcmar, R. and Gendiar, A. and Mosko, M. and Nemeth, R. and Vagner, P. and Mitas, L.}, year={2008}, month={Mar}, pages={1507–1509} }