Parameter Estimation in Quantum Metrology Technique for Time Series Prediction

• URL: http://arxiv.org/abs/2406.07893v1
• Date: Wed, 12 Jun 2024 05:55:45 GMT
• Title: Parameter Estimation in Quantum Metrology Technique for Time Series Prediction
• Authors: Vaidik A Sharma, N. Madurai Meenachi, B. Venkatraman,
• Abstract summary: The paper investigates the techniques of quantum computation in metrological predictions. It focuses on enhancing prediction potential through variational parameter estimation. The impacts of various parameter distributions and learning rates on predictive accuracy are investigated.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: The paper investigates the techniques of quantum computation in metrological predictions, with a particular emphasis on enhancing prediction potential through variational parameter estimation. The applicability of quantum simulations and quantum metrology techniques for modelling complex physical systems and achieving high-resolution measurements are proposed. The impacts of various parameter distributions and learning rates on predictive accuracy are investigated. Modelling the time evolution of physical systems Hamiltonian simulation and the product formula procedure are adopted. The time block method is analyzed in order to reduce simulation errors, while the Schatten-infinite norm is used to evaluate the simulation precision. Methodology requires estimation of optimized parameters by minimizing loss functions and resource needs. For this purpose, the mathematical formulations of Cramer Rao Bound and Fischer Information are indispensable requirements. The impact of learning rates on regulating the loss function for various parameter values. Using parameterized quantum circuits, the article outlines a four-step procedure for extracting information. This method involves the preparation of input states, the evolution of parameterized quantum states, the measurement of outputs, and the estimation of parameters based on multiple measurements. The study analyses variational unitary circuits with optimized parameter estimation for more precise predictions. The findings shed light on the effects of normal parameter distributions and learning rates on attaining the most optimal state and comparison with classical Long Short Term Memory (LSTM) predictions, providing valuable insights for the development of more appropriate approaches in quantum computing.

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