Weakly localised bosons
arXiv:cond-mat/9803345 · doi:10.1103/PhysRevB.57.14440
Abstract
In this paper, we argue that, in 2-d, the weak localisation of bosons, which occurs on the insulating side of the superconductor-insulator transition, is characterised by $Ï\sim ln(1/T)$, as compared to $Ï\sim lnT$ for fermions. Such an unconventional behaviour is tied to the diffusion pole of the delocalised (uncondensed) vortices.
13 pages, 2 figures; accepted for publication in Physical Review B To appear in Phys. Rev. B