The quantum teleportation is reexamined in a Fisher information perspective. Two proposals of enhancing the teleportation of quantum Fisher information (QFI) under amplitude damping channel are proposed by utilizing the weak measurement and environment-assisted measurement (EAM), respectively. Although both schemes enable us to improve the teleportation of QFI with a certain probability, the latter proposal can completely recover the initial QFI, while the former only approaches to it. A detailed comparison confirms that the scheme of EAM outperforms the WM one in the improvements of QFI. The underlying reason is that the EAM is a post-measurement; thus, it extracts more information from the system and environment than the pre-posed WM. Our research offers an active way to enhance the teleportation of QFI under the amplitude damping decoherence, which is very important for quantum metrology and other quantum information tasks.

从费舍尔信息的角度重新审查了量子隐形传态。分别提出了利用弱测量和环境辅助测量（EAM）来增强振幅阻尼信道下量子费舍尔信息（QFI）的隐形传送的两个建议。尽管这两种方案都使我们能够以一定的概率改善QFI的传送能力，但是后一种方案可以完全恢复初始QFI，而前者只能解决这种问题。进行了详细的比较，结果表明，在改进QFI方面，EAM方案优于WM方案。根本原因是EAM是一项后评估。因此，与预设的WM相比，它从系统和环境中提取了更多信息。我们的研究提供了一种在振幅阻尼退相干下增强QFI的隐形传送的积极方法，