3 citations · 3 across the 3 of their papers we have counts for
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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…
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…
Mirror symmetry in the energy spectra of -level systems
S. Cordero, O. Castaños, R. López--Peña +1
The energy spectrum of a system of atoms of levels interacting with a one-mode electromagnetic field is studied in the dipole and rotating wave approximations. We find th…