论文标题
其中一个：估计许多参数的函数
One from many: Estimating a function of many parameters
论文作者
论文摘要
对于量子多参数估计，很难制定可实现的灵敏度界限。考虑一个特殊情况，一个来自许多的参数：过程的许多参数是未知的；估计这些参数的特定线性组合，而无需控制任何参数。与单参数估计相似，该问题保留了真正的多参数方面。几何推理证明了必要和足够的条件，以使在这种情况下饱和基本和可实现的量子过程饱和。
Difficult it is to formulate achievable sensitivity bounds for quantum multiparameter estimation. Consider a special case, one parameter from many: many parameters of a process are unknown; estimate a specific linear combination of these parameters without having the ability to control any of the parameters. Superficially similar to single-parameter estimation, the problem retains genuinely multiparameter aspects. Geometric reasoning demonstrates the conditions, necessary and sufficient, for saturating the fundamental and attainable quantum-process bound in this context.
