论文标题

动能对兔频率计量学的影响

Influence of kinetic energy on the metrology of Rabi frequency

论文作者

Zhang, Xingyu, Wang, Xiaoguang

论文摘要

描述Rabi转变的相互作用模型对于研究原子 - 光子相互作用至关重要,在研究原子 - 光子相互作用中,对于分析的便利性,通常忽略了动能项。我们首先通过保真度方法研究了近似值,并在引人注目和动量的参数空间中验证其有效区域。我们发现,随着辐射场的动量和失呼降低的绝对值,近似值变得有效。我们进一步发现,省略动能项将高估拉比频率在某些参数区域中的测量准确性,并低估了其他使用Fisher Information Tools的帮助中的其他制度中的精度。值得注意的是,当我们考虑动力学术语时,最初的高斯州差异的特定选择将提高测量准确性。我们还研究了有或没有动能的病例的狂犬病频率的现实测量。

The interacting model describing the Rabi transition is essential in studying atom-photon interactions, where the kinetic energy term is often neglected for the convenience of analysis. We first study the approximation through the fidelity approach and verify its valid region in the parameter space of detuning and momentum. We find that as the radiation field's momentum and the absolute value of detuning decrease, the approximation becomes valid. We further discover that the omission of the kinetic energy term will overestimate the measuring accuracy of the Rabi frequency in some parameter regions and underestimate the precision in other regimes with Fisher information tools' help. Notably, a specific choice of the initial Gaussian state's variance in position space will improve the measuring accuracy when we take the kinetic energy term into account. We also study the realistic measurement of the Rabi frequency for cases with and without the kinetic energy.

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