61 citations · 742 across the 57 of their papers we have counts for
3 papers · 2 filters
Geometry and Entanglement of Two-Qubit States in the Quantum Probabilistic Representation
Julio A. López-Saldívar, Octavio Castaños, Eduardo Nahmad-Achar +3
A new geometric representation of qubit and qutrit states based on probability simplexes is used to describe the separability and entanglement properties of density matrices of two…
Entanglement of extremal density matrices of 2-qubit Hamiltonian with Kramers degeneracy
A. Figueroa, O. Castanos, R. Lopez-Pena
We establish a novel procedure to analyze the entanglement properties of extremal density matrices depending on the parameters of a finite dimensional Hamiltonian. It was applied t…
Entropic bounds between two thermal equilibrium states
Julio A. López-Saldívar, Octavio Castaños, Margarita A. Man'ko +1
The positivity conditions of the relative entropy between two thermal equilibrium states and are used to obtain upper and lower bounds for the subtraction of th…