JOURNAL OF MATHEMATICAL PHYSICS, cilt.54, sa.9, 2013 (SCI-Expanded)
In this study, first we construct the quasi-coherent states for a damped and forced harmonic oscillator and discuss the transition of the system from the damped oscillations to forced steady state oscillations. Second, we generalize the Caldirola-Kanai Hamiltonian into the new systems such as the frequency and the mass parameters are time dependent and discuss three examples of them. (C) 2013 AIP Publishing LLC.