Nonlinear Decoherence in Quantum State Preparation of a Trapped Ion
Le-Man Kuang, Hao-Sheng Zeng, Zhao-Yang Tong
Abstract
We present a nonlinear decoherence model which models decoherence effect caused by various decohereing sources in a quantum system through a nonlinear coupling between the system and its environment, and apply it to investigating decoherence in nonclassical motional states of a single trapped ion. We obtain an exactly analytic solution of the model and find very good agreement with experimental results for the population decay rate of a single trapped ion observed in the NIST experiments by Meekhof and coworkers (D. M. Meekhof, et al., Phys. Rev. Lett. 76, 1796 (1996)).
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