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Variational Formulation of Linear Time-Dependent Invariants
O. Castaños, R. López-Peña, V. I. Man'ko
It is shown that linear time-dependent invariants for arbitrary multi\-dimensional quadratic systems can be obtained from the Lagrangian and Hamiltonian formulation procedures by c…
Squeezing in a 2-D generalized oscillator
O. Castaños, R. López-Peña, V. I. Man'ko
A two-dimensional generalized oscillator with time-dependent parameters is considered to study the two-mode squeezing phenomena. Specific choices of the parameters are used to dete…
Pseudo SU(3) Model and Abnormal Parity States
Jorge G. Hirsch, Octavio Castaños, Peter O. Hess
The most important features of the pseudo SU(3) model are reviewed. This description of heavy deformed nuclei is based on pseudo spin symmetry, and is able to correctly predict the…