41 citations · 461 across the 30 of their papers we have counts for
4 papers · 1 filter
New approach to describe two coupled spins in a variable magnetic field
Yuri Belousov, Roberto Grimaudo, Antonino Messina +2
We propose a method to describe the evolution of two spins coupled by hyperfine interaction in an external time-dependent magnetic field. We apply the approach to the case of hyper…
Quantum Correlation Dynamics in Controlled Two-Coupled-Qubit Systems
Iulia Ghiu, Roberto Grimaudo, Tatiana Mihaescu +2
We study and compare the time evolutions of concurrence and quantum discord in a driven system of two interacting qubits prepared in a generic Werner state. The~corresponding quant…
Two-qubit entanglement generation through non-Hermitian Hamiltonians induced by repeated measurements on an ancilla
R. Grimaudo, A. Messina, A. Sergi +2
In contrast to classical systems, actual implementation of non-Hermitian Hamiltonian dynamics for quantum systems is a challenge because the processes of energy gain and dissipatio…
Dzyaloshinskii-Moriya and dipole-dipole interactions affect coupling-based Landau-Majorana-Stückelberg-Zener transitions
Roberto Grimaudo, Hiromichi Nakazato, Antonino Messina +1
It has been theoretically demonstrated that two spins (qubits or qutrits), coupled by exchange interaction only, undergo a coupling-based joint Landau-Majorana-Stückelberg-Zener (L…