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Decay of a superfluid currents in a moving system of strongly interacting bosons
A. Polkovnikov, E. Altman, E. Demler +2
We analyze the stability and decay of supercurrents of strongly interacting bosons on optical lattices. At the mean field level, the system undergoes an irreversible dynamic phase…
Superfluid-insulator transition in a moving system of interacting bosons
E. Altman, A. Polkovnikov, E. Demler +2
We analyze stability of superfluid currents in a system of strongly interacting ultra-cold atoms in an optical lattice. We show that such a system undergoes a dynamic, irreversible…
Vortex pinning by a columnar defect in planar superconductors with point disorder
Anatoli Polkovnikov, Yariv Kafri, David R. Nelson
We study the effect of a single columnar pin on a dimensional array of vortex lines in planar type II superconductors in the presence of point disorder. In large samples, t…
Phase transition of one dimensional bosons with strong disorder
Ehud Altman, Yariv Kafri, Anatoli Polkovnikov +1
We study one dimensional disordered bosons at large commensurate filling. Using a real space renormalization group approach we find a new random fixed point which controls a phase…