TITLE:
Optimal Estimate of Quantum States
AUTHORS:
Mario Mastriani
KEYWORDS:
Kalman’s Filter, Quantum Algorithms, Quantum Measurement
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.6 No.6,
June
28,
2018
ABSTRACT: An optimal estimator of quantum states based on a
modified Kalman’s filter is proposed in this work. Such estimator acts after a
state measurement, allowing us to obtain an optimal estimate of the quantum
state resulting in the output of any quantum algorithm. This method is much more accurate than other types of quantum measurements,
such as, weak measurement, strong measurement, and quantum state tomography,
among others.