31 citations · 129 across the 9 of their papers we have counts for
10 papers
Exact solution of a family of staggered Heisenberg chains with conclusive pretty good quantum state transfer
Pablo Serra, Alejandro Ferrón, Omar Osenda
We construct the exact solution for a family of one-half spin chains explicitly. The spin chains Hamiltonian corresponds to an isotropic Heisenberg Hamiltonian, with staggered exch…
Understanding the propagation of excitations in quantum spin chains with different kind of interactions
Alejandro Ferrón, Pablo Serra, Omar Osenda
The dynamical behaviour of the quantum state of different quantum spin chains, with designed site dependent interaction strengths, is analyzed when the initial state belongs to the…
Single spin resonance driven by electric modulation of the g factor anisotropy
Alejandro Ferrón, Santiago A. Rodríguez, Sergio S. Gómez +2
We address the problem of electronic and nuclear spin resonance of an individual atom on a surface driven by a scanning tunnelling microscope. Several mechanisms have been proposed…
Fast optical control of a coded qubit in a triple quantum dot
Diego S. Acosta Coden, Sergio S. Gomez, Rodolfo H. Romero +2
In this work, we study strategies for the optical control, within the dipole approximation, of a qubit encoded in the three-electron states of a triple quantum dot. The system is d…
Optimal control of a charge qubit in a double quantum dot with a Coulomb impurity
Diego S. Acosta Coden, Rodolfo H. Romero, Alejandro Ferrón +1
We study the efficiency of modulated laser pulses to produce efficient and fast charge localization transitions in a two-electron double quantum dot. We use a configuration interac…
Electronic properties of transition metal atoms on CuN/Cu(100)
Alejandro Ferrón, Jose Luis Lado, Joaquín Fernández-Rossier
We study the nature of spin excitations of individual transition metal atoms (Ti, V, Cr, Mn, Fe, Co and Ni) deposited on a CuN/Cu(100) surface using both spin-polarized density…