61 citations · 742 across the 57 of their papers we have counts for
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math-ph2016★ 3 cited
Extremal Density Matrices for Qudit States
Armando Figueroa, Julio A. López-Saldívar, Octavio Castaños +1
An algebraic procedure to find extremal density matrices for any Hamiltonian of a qudit system is established. The extremal density matrices for pure states provide a complete desc…
math-ph2012★ 35 cited
Generalized coherent states for time-dependent and nonlinear Hamiltonians via complex Riccati equations
Octavio Castaños, Dieter Schuch, Oscar Rosas-Ortiz
Based on the Gaussian wave packet solution for the harmonic oscillator and the corresponding creation and annihilation operators, a generalization is presented that also applies fo…