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Statistics of parametrically excited photon--added coherent states
V. V. Dodonov, Ya. A. Korennoy, V. I. Man'ko +1
Photon distribution function, means and dispersions are found explicitly for the nonclassical state of light which is created from the photon--added coherent state $\vert α,m \rang…
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…