Phys. Rev. A 60, 3815–3819 (1999)Nonlinear decoherence in quantum state preparation of a trapped ionReceived 31 August 1998; published in the issue dated November 1999 We present a nonlinear decoherence model which models decoherence effects caused by various decohering 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 co-workers [D. M. Meekhof et al., Phys. Rev. Lett. 76, 1796 (1996)]. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.60.3815
DOI:
10.1103/PhysRevA.60.3815
PACS:
32.80.Pj, 42.50.Lc, 03.65.Bz, 05.45.-a
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