76 citations · 485 across the 18 of their papers we have counts for
18 papers
Band inversion at critical magnetic fields in a silicene quantum dot
E. Romera, M. Calixto
We have found out that the band inversion in a silicene quantum dot (QD), in perpendicular magnetic and electric fields, drastically depends on the strength of the magnet…
Identifying the order of a quantum phase transition by means of Wehrl entropy in phase-space
O. Castaños, M. Calixto, F. Pérez-Bernal +1
We propose a method to identify the order of a Quantum Phase Transition by using area measures of the ground state in phase space. We illustrate our proposal by analyzing the well…
Identifying topological-band insulator transitions in silicene and other 2D gapped Dirac materials by means of Rényi-Wehrl entropy
M. Calixto, E. Romera
We propose a new method to identify transitions from a topological insulator to a band insulator in silicene (the silicon equivalent of graphene) in the presence of perpendicular m…
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.