Quantum Decoherence of a Single Trapped Ion due to Engineered Reservoir
Yi Xue-Xi · Communications in Theoretical Physics · 2002
Known as an engineered reservoir due to fluctuations in trap parameter, a classical source of quantum decoherence is considered for a single trapped ion theoretically. For simplicity it is assumed that the fluctuations involved are white noise processes, which enables us to give a simple master equation description of this source of decoherence. Our results show that the decoherence rate depends on the vibrational quantum number in different ways corresponding to the vibrational excitation sideband used there. Besides, this source of decoherence also leads to occurrence of dissipation in the ion system.