32 citations · 91 across the 4 of their papers we have counts for
4 papers
Spin-boson dynamics beyond conventional perturbation theories
Francesco Nesi, Elisabetta Paladino, Michael Thorwart +1
A novel approximation scheme is proposed to describe the dynamics of the spin-boson problem. Being nonperturbative in the coupling strength nor in the tunneling frequency, it gives…
Dynamics of a qubit coupled to a broadened harmonic mode at finite detuning
F. Nesi, M. Grifoni, E. Paladino
We study the dynamics of a symmetric two-level system strongly coupled to a broadened harmonic mode. Upon mapping the problem onto a spin-boson model with peaked spectral density,…
Spin-boson dynamics: A unified approach from weak to strong coupling
Francesco Nesi, Elisabetta Paladino, Michael Thorwart +1
We present a novel approximation scheme to describe the influence of a harmonic bath on the dynamics of a two-level particle over almost the whole regime of temperatures and coupli…
Loss and revival of phase coherence in a Bose-Einstein condensate moving through an optical lattice
F. Nesi, M. Modugno
We investigate the phase coherence of a trapped Bose-Einstein condensate that undergoes a dynamical superfluid-insulator transition in the presence of a one-dimensional optical lat…