76 citations · 485 across the 18 of their papers we have counts for
6 papers · 2 filters
Husimi distribution and phase space analysis of Dicke model quantum phase transition
E. Romera, R. del Real, M. Calixto
The Husimi distribution is proposed for a phase space analysis of quantum phase transitions in the Dicke model of spin-boson interactions. We show that the inverse participation ra…
Fisher information, nonclassicality and quantum revivals
E. Romera, F. de los Santos
Wave packet revivals and fractional revivals are studied by means of a measure of nonclassicality based on the Fisher information. In particular, we show that the spreading and the…
Application of new Rényi uncertainty relations to wave packet revivals
Francisco de los Santos, Clara Guglieri, Elvira Romera
Wave packet revivals and fractional revivals are studied by means of newly derived uncertainty relations that involve Rényi entropies and position and momentum dispersions.
Fractional revivals through Rényi uncertainty relations
Elvira Romera, Francisco de los Santos
We show that the Rényi uncertainty relations give a good description of the dynamical behavior of wave packets and constitute a sound approach to revival phenomena by analyzing thr…
Fisher-Shannon product and quantum revivals in wavepacket dynamics
T. García, F. de los Santos, E. Romera
We show the usefulness of the Fisher-Shannon information product in the study of the sequence of collapses and revivals that take place along the time evolution of quantum wavepack…
Revivals of Zitterbewegung of a bound localized Dirac particle
E. Romera
In this paper a bound localized Dirac particle is shown to exhibit a revival of the zitterbewegung (ZB) oscillation amplitude. These revivals go beyond the known quasiclassical reg…