1998/04/06 by Peter Schmitteckert, Rodolfo A. Jalabert, Dietmar Weinmann +2 · 4 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum many-body systems #cond-mat.dis-nn #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.81.2308
published as Phys. Rev. Lett. 81, 2308 (1998) · 4 pages, 5 figures; RevTeX
arxiv created 1998/04/06 · openalex publication_date 1998/09/14 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
When a system of spinless fermions in a disordered mesoscopic ring becomes unstable between the inhomogeneous configuration driven by the random potential (Anderson insulator) and the homogeneous one driven by repulsive interactions (Mott insulator), the persistent current can be enhanced by orders of magnitude. This is illustrated by a study of the change of the ground state energy under twisted boundary conditions using the density matrix renormalization group algorithm.