Machine learning classification of non-Markovian noise disturbing quantum dynamics

In this paper machine learning and artificial neural network models are proposed for the classification of external noise sources affecting a given quantum dynamics. For this purpose, we train and then validate support vector machine, multi-layer perceptron and recurrent neural network models with different complexity and accuracy, to solve supervised binary classification problems. As a result, we demonstrate the high efficacy of such tools in classifying noisy quantum dynamics using simulated data sets from different realizations of the quantum system dynamics. In addition, we show that for a successful classification one just needs to measure, in a sequence of discrete time instants, the probabilities that the analysed quantum system is in one of the allowed positions or energy configurations. Albeit the training of machine learning models is here performed on synthetic data, our approach is expected to find application in experimental schemes, as e.g. for the noise benchmarking of noisy intermediate-scale quantum devices.

Automated summary

This paper proposes machine learning and artificial neural network models for classifying external noise sources affecting a given quantum dynamics. SVM, MLP, and RNN models are trained and validated with different complexity and accuracy to solve supervised binary classification problems. The results demonstrate the high efficacy of these tools in classifying noisy quantum dynamics using simulated data sets from different realizations of the quantum system dynamics. Furthermore, the study shows that successful classification can be achieved by measuring the probabilities that the analyzed quantum system is in one of the allowed positions or energy configurations at discrete time instants. Although the training of machine learning models is performed on synthetic data, this approach is expected to be applicable in experimental schemes, such as noise benchmarking of noisy intermediate-scale quantum devices.