Adaptive Estimation of Quantum Channel Parameters

Adaptive Estimation of Quantum Channel Parameters

For the design and engineering of efficient quantum systems, accurate estimation of the key parameters of quantum channels is of paramount importance. In this presentation, we employ the method of adaptive quantum estimation to achieve the maximum possible precision in estimating these parameters. By leveraging adaptive mechanisms, this approach progressively improves the accuracy of the estimates, bringing them closer to the ultimate precision bounds set by quantum mechanics. To this end, we utilize an adaptive protocol with local operations and two-way classical communication, in combination with the teleportation-stretching technique and quantum estimation theory. Furthermore, a mathematical simulation of the quantum channel is performed to validate and analyze the effectiveness of the proposed method.