43 citations · 43 across the 1 of their papers we have counts for
6 papers
Three-party entanglement from positronium
A. Acin, J. I. Latorre, P. Pascual
The decay of ortho-positronium into three photons produces a physical realization of a pure state with three-party entanglement. Its quantum correlations are analyzed using recent…
Optimal minimal measurements of mixed states
G. Vidal, J. I. Latorre, P. Pascual +1
The optimal and minimal measuring strategy is obtained for a two-state system prepared in a mixed state with a probability given by any isotropic a priori distribution. We explicit…
Minimal optimal generalized quantum measurements
J. I. Latorre, P. Pascual, R. Tarrach
Optimal and finite positive operator valued measurements on a finite number of identically prepared systems have been presented recently. With physical realization in mind we p…
eta-eta' mixing from U_L(3) x U_R(3) Chiral Perturbation Theory
P. Herrera-Siklódy, J. I. Latorre, P. Pascual +1
We obtain explicit expressions for the ηand η' masses and decay constants using U_L(3) x U_R(3) chiral perturbation theory at next-to-leading order in a combined expansion in p^2 a…
Chiral Effective Lagrangian in the large-Nc limit: the nonet case
P. Herrera-Siklódy, J. I. Latorre, P. Pascual +1
A U_L(3) \otimes U_R(3) low-energy effective lagrangian for the nonet of pseudogoldstone bosons that appear in the large-Nc limit of QCD is presented including terms up to four der…
Speed of Light in Non--Trivial Vacua
J. I. Latorre, P. Pascual, R. Tarrach
We unify all existing results on the change of the speed of low--energy photons due to modifications of the vacuum, finding that it is given by a universal constant times the quoti…