61 citations · 742 across the 57 of their papers we have counts for
3 papers · 1 filter
Entropy-energy inequalities for qudit states
Armando Figueroa, Julio López, Octavio Castaños +3
We establish a procedure to find the extremal density matrices for any finite Hamiltonian of a qudit system. These extremal density matrices provide an approximate description of t…
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…
A triple point in 3-level systems
E. Nahmad-Achar, S. Cordero, R. López-Peña +1
The energy spectrum of a 3-level atomic system in the -configuration is studied. This configuration presents a triple point independently of the number of atoms, which remains i…