  The effects of quantum and thermal corrections on the dynamics of a damped
nonlinearly kicked harmonic oscillator are studied. This is done via the
Quantum Langevin Equation formalism working on a truncated moment expansion of
the density matrix of the system. We find that the type of bifurcations present
in the system change upon quantization and that chaotic behavior appears for
values of the nonlinear parameter that are far below the chaotic threshold for
the classical model. Upon increase of temperature or Planck's constant,
bifurcation points and chaotic thresholds are shifted towards lower values of
the nonlinear parameter. There is also an anomalous reverse behavior for low
values of the cutoff frequency.
