302 citations · 959 across the 12 of their papers we have counts for
4 papers · 1 filter
Fidelity Between Partial States as Signature of Quantum Phase Transitions
N. Paunkovic, P. D. Sacramento, P. Nogueira +2
We introduce a partial state fidelity approach to quantum phase transitions. We consider a superconducting lattice with a magnetic impurity inserted at its centre, and look at the…
Entanglement signatures of the quantum phase transition induced by a magnetic impurity in a superconductor
P. D. Sacramento, P. Nogueira, V. R. Vieira +1
The insertion of a magnetic impurity in a superconductor induces a first order quantum phase transition as the coupling to the electronic spin density increases. As the transition…
Magnetic impurities in a superconductor: Effect of domain walls and interference
P. D. Sacramento, V. K. Dugaev, V. R. Vieira
We consider the effect of magnetic impurities, modeled by classical spins, in a conventional superconductor. We study their effect on the quasiparticles, specifically on the spin d…
Anomalous Hall effect in a two-dimensional electron gas
Tamara S. Nunner, N. A. Sinitsyn, Mario F. Borunda +7
The anomalous Hall effect in a magnetic two-dimensional electron gas with Rashba spin-orbit coupling is studied within the Kubo-Streda formalism in the presence of pointlike potent…