70 citations · 187 across the 11 of their papers we have counts for
11 papers
Characterization of Phase Transitions in a Lipkin-Meshkov-Glick Quantum Brain Model
Elvira Romera, Joaquín J. Torres
In this work we analyze the emergence of phase transitions in a quantum brain model inspired by the Lipkin-Meshkov-Glick framework, where biologically motivated synaptic feedback m…
Dynamic Synaptic Modulation of LMG Qubits populations in a Bio-Inspired Quantum Brain
J. J. Torres, E. Romera
We present a biologically inspired quantum neural network that encodes neuronal populations as fully connected qubits governed by the Lipkin-Meshkov-Glick (LMG) quantum Hamiltonian…
Quantum revivals in HgTe/CdTe quantum wells and topological phase transitions
A. Mayorgas, M. Calixto, N. A. Cordero +2
The time evolution of a wave packet is a tool to detect topological phase transitions in two-dimensional Dirac materials, such as graphene and silicene. Here we extend the analysis…
Faraday rotation and transmittance as markers of topological phase transitions in 2D materials
M. Calixto, A. Mayorgas, N. A. Cordero +2
We analyze the magneto-optical conductivity (and related magnitudes like transmittance and Faraday rotation of the irradiated polarized light) of some elemental two-dimensional Dir…
Inverse participation ratio and localization in topological insulator phase transitions
M. Calixto, E. Romera
Fluctuations of Hamiltonian eigenfunctions, measured by the inverse participation ratio (IPR), turn out to characterize topological-band insulator transitions occurring in 2D Dirac…
Entropic uncertainty relations and topological-band insulator transitions in 2D gapped Dirac materials
Elvira Romera, Manuel Calixto
Uncertainty relations are studied for a characterization of topological-band insulator transitions in 2D gapped Dirac materials isostructural with graphene. We show that the relati…
The Husimi distribution, the Wehrl entropy and the superradiant phase in spin-boson interactions
R. del Real, M. Calixto, E. Romera
We study the Husimi distribution of the ground state in the Dicke model of field-matter interactions to visualize the quantum phase transition, from normal to superradiant, in phas…
Parity-symmetry-adapted coherent states and entanglement in quantum phase transitions of vibron models
M. Calixto, E. Romera, R. del Real
We propose coherent (`Schrödinger catlike') states adapted to the parity symmetry providing a remarkable variational description of the ground and first excited states of vibron mo…
Husimi distribution and phase-space analysis of a vibron-model quantum phase transition
M. Calixto, R. del Real, E. Romera
The Husimi distribution is proposed for a phase space analysis of quantum phase transitions in the two-dimensional vibron model for -size molecules. We show that the inve…
Searching for pairing energies in phase space
M. Calixto, O. Castaños, E. Romera
We obtain a representation of pairing energies in phase space, for the Lipkin-Meshkov-Glick and general boson Bardeen-Cooper-Schrieffer pairing models. This is done by means of a p…
Wave packet revivals in a graphene quantum dot in a perpendicular magnetic field
J. J. Torres, E. Romera
We study the time-evolution of localized wavepackets in graphene quantum dots under a perpendicular magnetic field, focusing on the quasiclassical and revival periodicities, for di…