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arXiv quant-ph/0605237quant-ph
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用原子磁力仪估算起伏磁场

Estimation of fluctuating magnetic fields by an atomic magnetometer

Vivi Petersen, Klaus Molmer

摘要:

我们提出了一个理论分析的能力,原子磁力计估计波动磁场。我们的分析利用高斯态描述的原子和探测场,它提出了估计的字段和测量其不确定性,符合在适当的限制与静态字段的成就。我们通过模拟表明,该字段的当前值的估计系统滞后于该字段的实际值,我们建议一个更完整的理论,在任何时候的测量结果被用来更新和改进的估计的当前值和B-字段的过去值的估计。

英文摘要:

We present a theoretical analysis of the ability of atomic magnetometers to estimate a fluctuating magnetic field. Our analysis makes use of a Gaussian state description of the atoms and the probing field, and it presents the estimator of the field and a measure of its uncertainty which coincides in the appropriate limit with the achievements for a static field. We show by simulations that the estimator for the current value of the field systematically lags behind the actual value of the field, and we suggest a more complete theory, where measurement results at any time are used to update and improve both the estimate of the current value and the estimate of past values of the B-field.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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