典型文献
Environmental parameter estimation with the two-level atom probes
文献摘要：
A novel scheme is proposed to estimate three environmental parameters,the detuning,the temperature and the squeez-ing strength with one-qubit or two-qubit probes.Quantum Fisher information and the fidelity of the atom probes are cal-culated.When the detuning between the frequency of cavity field and the atomic transition frequency is estimated,the dynamics of quantum Fisher information shows oscillatory and rising behaviors.To estimate the temperature of the thermal reservoir,the one-qubit probe with the superposition initial state is more favorable than the two-qubit probe with the entan-gled initial state.When the squeezing strength of the squeezed vacuum reservoir is estimated,we find that the estimation precision is significantly improved by utilizing the two-qubit probe with the maximal entangled initial state.Our work provides a potential application in the open quantum system and quantum information processing.
文献关键词：
中图分类号：
作者姓名：
Mengmeng Luo;Wenxiao Liu;Yuetao Chen;Shangbin Han;Shaoyan Gao
作者机构：
MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter,Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices,School of Physics,Xi'an Jiaotong University,Xi'an 710049,China;Department of Physics and Electronics,North China University of Water Resources and Electric Power,Zhengzhou 450046,China
文献出处：
引用格式：
[1]Mengmeng Luo;Wenxiao Liu;Yuetao Chen;Shangbin Han;Shaoyan Gao-.Environmental parameter estimation with the two-level atom probes)[J].中国物理B（英文版）,2022(05):140-147
A类：
squeez
B类：
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AB值：
0.493643
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