Burenkov Ivan A, Annafianto N Fajar R, Jabir M V, Wayne Michael, Battou Abdella, Polyakov Sergey V
Joint Quantum Institute and University of Maryland, College Park, Maryland 20742, USA.
National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
Phys Rev Lett. 2022 Jan 28;128(4):040404. doi: 10.1103/PhysRevLett.128.040404.
We demonstrate the single-shot confidence estimation for individual quantum measurement outcomes using the continuous measurement theory of the quantum counting process applied to the quantum state identification problem. We experimentally obtain single-shot and average confidences for quantum measurements and show that they favorably compare to that of the idealized classical measurement. Finally, we demonstrate that single-shot confidence estimations correctly represent observed experimental outcomes for a large ensemble of measurements.
我们运用应用于量子态识别问题的量子计数过程的连续测量理论，展示了对单个量子测量结果的单次置信度估计。我们通过实验获得了量子测量的单次置信度和平均置信度，并表明它们与理想化经典测量的置信度相比具有优势。最后，我们证明单次置信度估计能够正确地代表大量测量集合中观察到的实验结果。
