2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/215929In (quant-ph/0701141) Rajeev studied quantization of the damped simple harmonic oscillator and introduced a complex-valued Hamiltonian (which is normal). In this note we point out that the quantization is interpreted as a quantum mechanics with {\bf complex time}. We also present a problem on quantization of classical control systems.Latex ; 7 pages ; 1 figure. A draft prepared for the coming Numazu Meeting (6-8/March/2007)Quantum PhysicsMathematical Physicstext