29 citations · 89 across the 9 of their papers we have counts for
Showing 2016Show all
2 papers · 1 filter
quant-ph2016★ 3 cited
Discretization of the density matrix as a nonlinear positive map and entanglement
Julio A. López-Saldívar, Armando Figueroa, Octavio Castaños +3
The discretization of the density matrix is proposed as a nonlinear positive map for systems with continuous variables. This procedure is used to calculate the entanglement between…
quant-ph2016★ 8 cited
Evolution and entanglement of Gaussian states in the parametric amplifier
Julio A. López-Saldívar, Armando Figueroa, Octavio Castaños +3
The linear time-dependent constants of motion of the parametric amplifier are obtained and used to determine in the tomographic-probability representation the evolution of a genera…