Geometrical versus time-series representation of data in quantum control learning

Autorzy Ostaszewski M.; Miszczak J.; Sadowski P.
Tytuł Geometrical versus time-series representation of data in quantum control learning
Czasopismo Journal of Physics A: Mathematical and Theoretical
Rok 2020
Status Published
Tom 53
Numer 19
DOI 10.1088/1751-8121/ab8244
Abstrakt <p>Recently machine learning techniques have become popular for analysing physical systems and solving problems occurring in quantum computing. In this paper we focus on using such techniques for finding the sequence of physical operations implementing the given quantum logical operation. In this context we analyse the flexibility of the data representation and compare the applicability of two machine learning approaches based on different representations of data. We demonstrate that the utilization of the geometrical structure of control pulses is sufficient for achieving high-fidelity of the implemented evolution. We also demonstrate that artificial neural networks, unlike geometrical methods, posses the generalization abilities enabling them to generate control pulses for the systems with variable strength of the disturbance. The presented results suggest that in some quantum control scenarios, geometrical data representation and processing is competitive to more complex methods.</p>