Enhancing estimation precision of parameter for a two-level atom with circular motion
作者： Ying Yang , Jiliang Jing , Zixu Zhao
DOI: 10.1007/S11128-019-2235-4
关键词:
摘要: We find a way to improve the estimation precision of parameter by enhancing quantum Fisher information (QFI) investigating dynamics two-level atom with circular motion which is coupled scalar field in open system. Our results illustrate that QFI phase decreases increase centripetal acceleration and evolution time. However, contrast unbounded case, we slowly boundary. Especially, tends 1 when very close boundary, implies shielded from influence vacuum fluctuation Therefore, can enhance choosing an appropriate position.
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