Abstract
The temporal fidelity of a non-dissipative quantised harmonic oscillator (QHO) driven by two types of pulsed laser; namely, rectangular and train of n-chirped Gaussian pulses is investigated. The computational results are presented for two initial states of the HO, namely, the superposition of coherent states (Schrödinger cat states type) and squeezed coherent state. Quantum interference between the two component states |α〉 and |−α〉 of the initial cat state in the non-resonance case induces oscillatory behaviour in the fidelity. The case of initial squeezed coherent state shows profound maximum bounds of the fidelity or lesser maximum peaks, depending on the pulse shape and other system parameters (squeezing, chirp and pulse number parameters).
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