104 citations · 788 across the 41 of their papers we have counts for
5 papers · 1 filter
Entanglement and coherence in a spin-s XXZ system under non-uniform fields
E. Rios, R. Rossignoli, N. Canosa
We investigate entanglement and coherence in an spin- pair immersed in a non-uniform transverse magnetic field. The ground state and thermal entanglement phase diagrams ar…
Pair entanglement in dimerized spin-s chains
A. Boette, R. Rossignoli, N. Canosa +1
We examine the pair entanglement in the ground state of finite dimerized spin- chains interacting through anisotropic couplings immersed in a transverse magnetic field, by…
Separability conditions and limit temperatures for entanglement detection in two qubit Heisenberg XYZ models
N. Canosa, R. Rossignoli
We examine the entanglement of general mixed states of a two qubit Heisenberg XYZ chain in the presence of a magnetic field, and its detection by means of different criteria. Both…
Factorization in XYZ spin systems under general fields and separable ground state engineering
M. Cerezo, R. Rossignoli, N. Canosa
We discuss ground state factorization schemes in spin arrays with general couplings under general magnetic fields, not necessarily uniform or transverse. It is first show…
Conditional purity and quantum correlation measures in two qubit mixed states
L. Rebón, R. Rossignoli, J. J. M. Varga +4
We analyze and show experimental results of the conditional purity, the quantum discord and other related measures of quantum correlation in mixed two-qubit states constructed from…