171 citations · 3.8k across the 172 of their papers we have counts for
3 papers · 2 filters
Quantum phases of a qutrit
A. B. Klimov, L. L. Sanchez-Soto, H. de Guise +1
We consider various approaches to treat the phases of a qutrit. Although it is possible to represent qutrits in a convenient geometrical manner by resorting to a generalization of…
Inequivalent classes of closed three-level systems
Andre B. Klimov, Hubert de Guise, Luis L. Sanchez-Soto
We show here that the and V configurations of three-level atomic systems, while they have recently been shown to be equivalent for many important physical quantities when drive…
A measurable entanglement criterion for two qubits
Hoshang Heydari, Gunnar Björk, Luis Sánchez-Soto
We propose a directly measurable criterion for the entanglement of two qubits. We compare the criterion with other criteria, and we find that for pure states, and some mixed states…