Anuradha Jagannathan

TL;DR: It is shown that this large value of the coupling constant does not invalidate the perturbative calculation, provided that a temperature-dependent condition on the hopping lifetimes is satisfied, and speculated that this effect accounts for the observed nonuniversality of \ensuremath{\kappa}(T) above the plateau region.

TL;DR: The antiferromagnetic Heisenberg model is studied on a two-dimensional bipartite quasiperiodic lattice using the stochastic series expansion quantum Monte Carlo method, and a nontrivial inhomogeneous ground state is found.

TL;DR: In this article, exact solutions for some eigenstates of hopping models on one-and two-dimensional quasiperiodic tilings are presented, by explicitly computing their multifractal spectra.

TL;DR: In this paper, the spectral properties of a tight-binding hamiltonian on the Fibonacci chain were characterized analytically as completely as possible, such as the spectral measure, the bandwidth distribution, the Lebesgue measure exponent, the Hausdorff dimension, the multifractal scaling, the gaps distribution as well as the long time return probability.

TL;DR: It is found that a large fraction of the magnetic moments are not quenched down to very low temperatures T, leading to a power-law distribution of Kondo temperatures P(T(K))∼T (K)(α-1), with a nonuniversal exponent α, in a remarkable similarity to the Kondo-disorder scenario found in disordered heavy-fermion metals.