100 citations · 410 across the 13 of their papers we have counts for
4 papers · 1 filter
Two-Impurity Kondo Model: Spin-Orbit Interactions and Entanglement
Henrik Johannesson, David F. Mross, Erik Eriksson
Motivated by proposals to employ RKKY-coupled spins as building blocks in a solid-state quantum computer, we analyze how the RKKY interaction in a 2D electron gas is influenced by…
Impurity entanglement entropy in Kondo systems from conformal field theory
Erik Eriksson, Henrik Johannesson
The entanglement entropy in Kondo impurity systems is studied analytically using conformal field theory. From the impurity contribution to the scaling corrections of the entangleme…
Multicriticality and entanglement in the one-dimensional quantum compass model
Erik Eriksson, Henrik Johannesson
We study the one-dimensional (1D) quantum compass model with two independent parameters by means of an exact mapping to the quantum Ising model. This allows us to uncover hidden fe…
Reduced fidelity in topological quantum phase transitions
Erik Eriksson, Henrik Johannesson
We study the reduced fidelity between local states of lattice systems exhibiting topological order. By exploiting mappings to spin models with classical order, we are able to analy…