61 citations · 742 across the 57 of their papers we have counts for
57 papers
From free-evolution to tomographic representation
Sergio Cordero, Ramón López-Peña, Eduardo Nahmad-Achar +3
We use the free evolution propagator to determine the quantum probability representation (i.e., the general expression of the tomogram) of any one-dimensional system described by a…
Dynamic violation of Bell's inequalities in the angular momentum representation
J. A. López-Saldívar, O. Castaños, S. Cordero +2
A parametrization of density matrices of dimensions in terms of the raising and lowering angular momentum operators is established together with an implicit connect…
Geometric properties of qudit systems
J. A. López-Saldívar, O. Castaños, S. Cordero +2
We discuss in general how to geometrically visualize a qudit system, with a particular interest in thermal states. The principle of maximum entropy is used to study the geometric p…
Entanglement of a three-level atom interacting with two-modes field in a cavity
A. del Rio-Lima, F. J. Poveda-Cuevas, O. Castaños
The dynamics of the interaction between an atom of three levels interacting with a quantized field of two modes in a cavity is studied within the rotating wave approximation, by ta…
Storing Quantum Information in a generalised Dicke Model via a Simple Rotation
R. López-Peña, S. Cordero, E. Nahmad-Achar +1
A method for storing quantum information is presented for -level atomic systems interacting dipolarly with a single radiation field. The method involves performing simple local…
Geometry, quantum correlations, and phase transitions in the -atomic configuration
O. Castaños, S. Cordero, R. López-Peña +1
The quantum phase diagram for a finite -level system in the configuration, interacting with a two-mode electromagnetic field in a cavity, is determined by means of informati…