论文标题
对估计两点分离的相干影响
Coherence effects on estimating two-point separation
论文作者
论文摘要
如果将量子渔民信息（FI）应用于两个点源分离的估计，则在已知源之间的连贯性的情况下，已显示为非零。尽管据称对相干性的无知导致量子FI消失（瑞利诅咒的复兴），但在此提供了更完整的分析，包括相干参数的幅度和相位。对连贯性的部分无知可能会破坏雷利的诅咒，而完全的无知保证了其复兴。
The quantum Fisher information (FI), when applied to the estimation of the separation of two point sources, has been shown to be non-zero in cases where the coherence between the sources are known. Although it has been claimed that ignorance of the coherence causes the quantum FI to vanish (a resurgence of Rayleigh's curse), a more complete analysis including both the magnitude and phase of the coherence parameter is given here. Partial ignorance of the coherence is shown to potentially break Rayleigh's curse, whereas complete ignorance guarantees its resurgence.
